Author: crhammer

Best Cordless Brushless Drills (& Buying Guide) for 2020

Best Cordless Brushless Drills (& Buying Guide) for 2020

Power tools are a crucial addition to any homeowner’s tool cabinet. The advanced tool makes it not only possible but easy to take care of maintenance tasks around the house with efficiency and ease.  These tools are very accessible, and that’s why not only professionals […]

Brushed Vs Brushless Drills

Brushed Vs Brushless Drills

Power tools are essentials not only for the professionals but also for several homeowners. Homeowners find it easier to have these tools at their disposal in times of need. Whether it’s for a DIY project or a professional endeavor, owning a powerful drill takes the […]

How Rotary Hammer drill Works (Mechanism And Maintenance)

How Rotary Hammer drill Works (Mechanism And Maintenance)

Power tools come in handy in almost any construction or reconstruction work in today’s age. These tools are a great help to homeowners and essential in any construction professional’s kit. Specific tools are there for certain tasks, and sometimes, with innovation, manufacturers come out with hybrids that serve many purposes while saving space and money of the user.
One of these modern innovations is the Rotary hammer drill. The tool is popular amongst the professionals, and you can also see it in many garages as well. Making it easier to do a variety of heavy-duty tasks, this is one of the essential power tools today.
This article is about discovering how the tool works and how you can ensure its durability. But first, let’s discuss a little about the device in the spotlight.

What is a Rotary Hammer Drill?

A rotary hammer is a power tool used for a variety of heavy-duty operations. It is perfect for accomplishing any drilling and chiseling in hard materials. Some of the lighter rotary drills are ineffective when it comes to hard materials, or require more time, and energy. With Rotary hammer drill, you get all in one package that can provide you with the needed power for heavy-duty operations. It is also a perfect fit for your regular drilling needs.  If you don’t have a direct electricity supply at your work site, consider using a cordless rotary hammer.
The versatility that comes with this tool is the reason why it is a preferred choice of professionals and other users.
The main difference between an ordinary drill and a rotary hammer drill is the power, as well as a smooth transition for a variety of tasks.

How Rotary Hammer drill Works

Now, let’s look into the Working Mechanism of a rotary hammer drill

The Usual drills that are used by people tend to be smaller in size. Similarly, they are also less powerful and are appropriate for light drilling. It’s the opposite when it comes to the Rotary hammer drill, which is powerful than an ordinary model for starters.
A rotary hammer is sizeable as well and is an appropriate choice for heavy-duty projects.

Rotary hammer drills utilize the Electro-Pneumatic Hammering mechanism (EP Technology) and provide a substantial impact force. It is because the device gets the power directly by electricity and not a separate air compressor.

There are two pistons in a rotary hammer; the First one is a drive piston, and the second one is a flitting (flying) piston. The electric motor in the device turns the crank, and this results in the drive piston moving back and forth in a cylinder. At the other end of the same is the flitting (flying) piston. The result is not touching of the two, but due to the pressure inside the EP cylinder, a more efficient transfer of energy takes place.

The EP technology is in the majority of modern rotary hammers. Similarly, most of electric power chipping guns and jackhammers utilize this technology. This way, in these units, the hammering and rotation functions can be used separately or in combination.

In the hammering mode, the device is capable of providing a jack hammer-like drilling impact. Rotary hammer drills are capable of withstanding large forces and shock, as well as extreme working conditions, because of the oil-filled gearbox that these tools have. It makes operating these tools safer.

These tools require a slip bit, which is engaged when the drill bit jams. Now, sufficient torque goes onto the slip clutch mechanism. It protects the drill from damage by stopping the violent wrenching motion that a drill without a clutch can cause on being stopped suddenly from full speed. The slip clutch also protects the operator but does not ensure total safety. There are a variety of safety features that many manufacturers employ to ensure operator safety.

To sum it all up, let’s have a look at the whole mechanism again.

  • When the user presses the ON button, a single is sent, and the motor is activated.
  • Once the motor is activated, it starts rotating while driving gears and rotating the bit and moving the piston.
  • When the drive piston moves forward, it lessens the air pocket between itself and the free flight piston. It results in the formation of a compressed air pocket between the two, pushing the free flight piston forward. There is no actual contact between the two, and the free flight piston moves with only the compressed air impact.
  • On moving forward, the free flight piston contacts the striker.
  • Upon contact, the striker makes contact with the end of the drill bit or the chisel, providing the hammering action. Since the frequency of the hammering (Piston Cycle) is higher than the rotary speed, the hammering action occurs numerous times for each revolution of the drill bit.

Now, let’s have a look at some pointers you can keep in mind to make sure the durability of your rotary hammer drill.

Maintenance & Safety

  • First off, if you have a corded model, make sure that you don’t stretch it. Make use of an extension board if necessary. Make sure that it’s plugged in properly before turning it on.
  • While working, put on gloves, and headphones and protective glasses to be safe from the impact, noise, and flying debris.
  • Work in short intervals, as the impact of the rotary hammer can be damaging to your hands and arms.
  • Whenever working, make sure to hold the device properly with both hands. This way, if the bit jams due to overloading, or becomes wedged, you can handle the reaction. In a case like this, turn off the device immediately.
  • Do not make sudden movements that can damage the gears of the tool. If You want to switch the direction of the device, first turn it off, face it in the desired direction, and begin working.
  • Keep cleaning the dust and debris created by the drilling process to ensure smooth working. Some of the devices come with an extraction unit for user convenience.
  • After finishing, don’t place the device directly on the floor. First, let it come to rest, and then place it down. Unplug the device right after.
  • When storing the device away, make sure that it’s in a dry area and that nothing damaging is around it. The most convenient way to keep it is to buy an appropriate case.

You can prolong the durability, and ensure the safety of the device, and yourself, by following these pointers.

FAQs

Q – Are Rotary hammer and Hammer drill the same?
A – Although they have somewhat similar mechanisms of working, Rotary hammer and Hammer Drill are not the same. Rotary Hammer is a more powerful tool, as compared to a hammer drill.

Q – How is the Rotary Hammer more Powerful than any ordinary Drill?
A – The Rotary Hammer uses a technology known as Electro-Pneumatic Hammering Mechanism (EP). Rather than being powered by a separate air compressor, it is powered directly by electricity, which results in a higher impact.

Q – Can a Rotary Hammer work with ordinary Drill Bits?
A – No. Since the Rotary hammers provide more impact, ordinary shanks cannot withstand that. There are special Rotary hammer shanks available that are suitable for these tools.

Q – What is the use of a Rotary hammer?
A – Rotary Hammers are useful in doweling and drilling holes in hard surfaces like concrete and masonry walls. The rotary action also is switched for just the use of percussive force. It is also useful for other smaller applications using the chisel and point accessories.

Bosch 11264EVS 1-5/8 SDS-Max Combination Hammer Review

Bosch 11264EVS 1-5/8 SDS-Max Combination Hammer Review

For any homeowner, having a decent toolbox is of great importance. For one, it is an assurance that when the opportunity calls, he or she will be ready to tackle it on a moment’s notice. Other than that, it also is a motivation to go […]

Makita HR4002 Review: 1-9/16-Inch SDS-MAX Rotary Hammer

Makita HR4002 Review: 1-9/16-Inch SDS-MAX Rotary Hammer

Power tools are a crucial asset to any homeowner. With the right tools at your disposal, you can tackle even the difficult jobs with ease. That’s why it’s necessary to weed out the tools that don’t match your requirements. You have to go with the […]

Best Cordless Drill Combo Kits (Buying Guide 2019)

Best Cordless Drill Combo Kits (Buying Guide 2019)

If you ask anyone who has been using power tools for a long time, it’s better to have every tool organized, than to piece together device after device. This way you can easily store and retrieve the tools you need. 

With a complete kit in your possession, you can prepare for any task that might come your way. You’re always ready for action.

A lot of different manufacturers have excellent cordless drill combo kits in the market for you to choose from. You can order these kits online, or you can go out and get one from your nearest hardware store. 

In today’s article, we’re going to be discussing the best cordless drills combo kits that you can buy online. So, without further ado, let’s get to it.

Here are the best Cordless Drill Combo Kits

1. DEWALT 20V MAX Cordless Drill Combo Kit(DCK240C2)

The DEWALT DCK240C2 20v Lithium Drill Driver/Impact Combo Kit is one of the most popular options in the market at the moment. There are a lot of great qualities to this set that makes it a worthy buy. DEWALT is a well-known name in the industry, and with this kit brings you an option you would like to welcome. 

Let’s discuss a little about the main features, and specifications of this combo. 

Features

Ergonomic Design 

The ergonomic make of the kit makes it very easy to handle. It is also very comfortable to maneuver, and you can easily handle a variety of tasks with ease. The set is also very lightweight and doesn’t require a lot of effort for moving around. 

Since the tools are cordless, you can also reach far off areas, and work anywhere with ease. 

High Performance 

It is a high-performance kit that features a powerful motor and can accomplish the tasks with ease and efficiency. The DCD771 is capable of delivering 300 unit watts out (UWO) of power and can complete a wide range of applications. 

Other Features 

The DCD771 has cordless tools and has a 1/4 Hex chuck and accepts 1 inch bit types. The in-built LED lights have a 20-second delay after trigger release. The high-speed transmission delivers two speeds (0-450 & 1,500 rpm) for a range of fastening and drilling applications. For more comfort and better control, the tool features an ergonomic handle and the1/2″ single sleeve ratcheting chuck provides a tight bit gripping strength. It is an affordable option for users. 

Specifications

  • The product weighs just 9.1 Pounds. 
  • Its overall dimensions are 15.1 x 6.4 x 9.9 inches. 
  • The set includes (1) DCF885 20v MAX Lithium Impact Driver, and (1) DCD771 20v Max Lithium Drill/Driver, (2) 20-Volt Maximum lithium-ion 1.3Ah battery packs, (1) 20-Volt Maximum charger, and a contractor bag.

2. Milwaukee 2797-22 M18 Fuel Lithium 2-Tool Combo Kit

Another great product, this kit offers to be an efficient option for your needs. The well-designed tools are powerful and get the job done quickly and comfortably. 

Here are the details about the product. 

Features

Well-Made

The tools are made with the best of quality materials. The ergonomic design makes it easier for users to maneuver the tools. You can reach, even the hard to reach areas with ease, thanks to the cordless models. 

It is a well-made and durable product and will last you a long time. 

The product is made keeping the comfort and ease of the user. It features a lot of extras that other kits usually don’t. There’s no need for batteries with Milwaukee 2797-22 M18, and after full charge, you can use the tool for about two hours of drilling. 

The user-friendly model also has the most torque a cordless drill can offer. 

Specifications

  • The Product weighs 16.5 Pounds. 
  • Its overall dimensions are 4.4 x 17.1 x 13.8 inches. 
  • The kit includes a Hammer Drill and a Hex Impact Driver. 

3. Makita Ct226 12V Max Cxt Lithium-Ion Cordless 2-Pc. Combo Kit 

The Makita 12V max CXT Lithium-Ion cordless tools are compact and ergonomically designed for maximum efficiency and comfort. The kit is an appropriate option for all your drilling, driving, and fastening. 

Among many other great manufacturers, MAKITA has produced a long list of incredible tools, and this kit features a few of those tools. 

Let’s have a look at the Product. 

Features

Ergonomic design

The tools in the kit are ergonomic and are very comfortable for the users. They are compact and are easy to carry. The ergonomically designed handles are very comfortable. Thanks to all this, the users feel less fatigue during the projects. 

Other Features

The compact design lets users work in hard to reach areas and results in less fatigue. Tools feature Lithium-Ion battery technology and deliver more power for maximum efficiency. The 12V slide battery design enables the tools to stand for convenience. The in-built LED lights are useful in working in places where it’s darker. 

  • The 3/8 inches Driver-Drill is compact (7 7/16 inches long) and weighs only 2.8 pounds with battery, resulting in reduced operator fatigue. 
  • The Impact Driver has variable speeds (0 2,600 RPM & 0 2,400 IPM), and can deliver up to 970 inches pounds of Max Torque.

Specifications

  • The product weighs 9.25 Pounds. 
  • Its overall dimensions are 11.3 x 16.8 x 6 inches. 
  • The Kit includes 12V CXT Cordless Lithium-Ion 3/8 inch Driver-Drill (FD05), 12V CXT Cordless Lithium-Ion 1/4 inch Impact Driver (DT03), (2) 12V Max CXT Lithium-Ion 1.5Ah Batteries, 12V Max CXT Lithium-Ion Battery Charger (DC10WD), and a Tool Bag.

4. Milwaukee 2494-22 M12 Cordless Combination

The Milwaukee 2494-22 M12 Cordless Combination is one of the best sets for your drilling and driving needs. Milwaukee has a lot of great tools, and this kit also features tools that the users would like to consider. The tools are well-designed and are efficient in accomplishing the task at hand. 

Features

Powerful Design 

The product is very well-designed and features a 3/8″ DRILL / DRIVER (2407-20), and a 1/4″ HEX IMPACT DRIVER (2462-20). 

  • The DRILL / DRIVER is all-metal and has a compact size. The 12-volt tool comes with Milwaukee’s highest standards for power. The tool speeds reach up to 1,500 RPM. There is also a 20 position clutch to adjust your torque up to 275-inch pounds, and it has enough power to drive fasteners and drill holes through a variety of residential and industrial projects.
  • The HEX IMPACT DRIVER is a 12V tool that offers 2,500 RPM and 1,000 Inch Pounds of torque. Thanks to the textured grip, users get improved control, even in slippery conditions. There is also an onboard LED lighting system for working in dimmer areas. With the fuel gauge, you can determine how much work you can still do on a single charge. 

Other Features

The 12V batteries come with RedLink intelligence, which makes a smart connection between the devices and the batteries. Thanks to this, excessive power is not sent to the tool, which prevents the devices from overheating. Also, the compact design gives you the ease of use, as compared to any other M12 li-ion batteries. 

The M12 charger features a charging status indicator, which lets you know when the battery is charging, has charged, or requires maintenance. There’s also a pass-through plug to conserve your outlet space.

Specifications

  • The product weighs 7.01 pounds. 
  • Its overall dimensions are 14.1 x 9.3 x 3.8 inches.
  • The kit includes 3/8″ Drill / Driver, 1/4″ Hex Impact Driver, Dual Power Tool Kit (2 Lithium-Ion Batteries, Charger, and a Bag. 

5. Ryobi P884 18-Volt ONE+ Lithium-Ion Combo Kit

Ryobi P884 18-Volt ONE+ Lithium-Ion Combo Kit contains six tools and is also an option you should have a look at before you make a decision. The devices are well-made and comfortable to use. 

Features

Design

The devices are well-designed and offer maximum control to the users. They are comfortable, and because of the smart design, users experience less fatigue during work. 

The Drill features two-speed settings (0-440 or 0-1600 rpm), variable with a spring-loaded trigger. The reciprocating saw features tool-free blade change. Saw’s adjustable pivoting shoe allows for depth-of-cut control and more efficient use of the blade. The circular saw has an exact line laser, which automatically activates during use. 

Other Features 

There are two 18-volt lithium batteries, compatible with any machine in the one+ product line. The 18-volt dual-chemistry charger is also included with the kit. The batteries only take as little as thirty minutes for recharging. 

The work light has a multi-functional design. It is capable of sitting flat on battery, on end, or hanging for ultimate lighting versatility. Users can use the swivel head to direct the light where it is needed. 

Specifications

  • The product weighs 24.8 Pounds. 
  • Its overall dimensions are 19.7 x 15 x 9 inches. 
  • The kit includes a drill, a circular saw, an impact driver, a reciprocating saw, a job plus base, work light, and a carrying bag for easy portability. 

These are few of the best cordless drill combo sets available in the market at the moment, among others. You can pick out the one that’s best for you, after assessing your requirements.


Interested to know more? Here rotary hammer beginners guides.

Best Demolition Hammers (Cordless & Corded) for 2019

Best Demolition Hammers (Cordless & Corded) for 2019

Power tools make life so much easier. In today’s world, it hard to imagine life without the convenience of a power tool in your home. A variety of tasks require the usage of these tools and are hard to do without them. That’s why you […]

Best Cordless Rotary Hammer Drills with Dust Extraction Vacuum Attachments 

Best Cordless Rotary Hammer Drills with Dust Extraction Vacuum Attachments 

For doing anything well, you need some god devices. Be it cleaning your house, or preparing a meal, the right tool helps you finish the task quickly, and efficiently.  For every homeowner, maintaining everything home becomes second nature. A good tool kit is, therefore, an […]

Hilti 3536725 SFD 2-A Cordless Hammer Drill/Driver Kit : A Review

Hilti 3536725 SFD 2-A Cordless Hammer Drill/Driver Kit : A Review

Every home needs care and maintenance, and its the job of the homeowner to ensure that it is in the best shape that it can be. It is an ongoing process, and you have to keep at it. Every house evolves through the changes that the owners keep making. Sometimes it’s the lawn, and other times garage; sometimes it’s a new installation, and sometimes, it’s repainting the walls; and this is what it’s like to be a homeowner. 

That is why every homeowner needs a good tool kit at their disposal at all times. And, one of the essential tools in that tool kit is; the Hammer Drill.

What is a Hammer Drill, & why bother?

A hammer drill is a type of rotary drill and is a tool used to drill into hard materials like concrete, stones, masonry, and so on. Hammer drill has an impact mechanism that generates a hammering motion. It produces a rapid succession of short hammer thrusts, which pulverizes the material you’re about to bore. All this makes the drilling process go quicker, and with less effort. There’s also an option that allows you to turn off the hammering action, and you can use hammer drill as a regular drill to perform tasks such as screw driving. These can be corded or cordless.

Why do you need one? Well, as is clear from above, the hammer drill is an efficient tool for drilling into hard materials such as stones, masonry, and concrete, etc. It is a better option for heavy-duty jobs than ordinary drills because it is capable of providing more power, facilitating the process. It is a straightforward process when it comes to working with any simple drilling tool. But, with the added hammering action of the hammer drill, it can quickly drill into the hard materials, with little energy. That makes the hammer drill an important, and essential tool in every homeowner and even professional’s toolkit.  

Things to keep in mind while Buying a Hammer Drill

If you are going to buy a hammer drill for yourself, you need to consider a few things before you make a decision. You shouldn’t rush into buying just any model. First, you should look into what the product has to offer. Here are a few factors that you should check. 

Manufacturer 

Where the product is coming from matters a lot when you’re buying any product. Having a trusted manufacturer provides the safety that is lacking from an unknown company. In case of any fault or any other issue, a well-known, and established manufacturer can provide customer care, while others won’t, or are not able to. 

Also, you have the satisfaction of knowing that it is a preferred tool of thousands of homeowners. 

Cordless or corded

You have the option of choosing between the corded, or the cordless hammer drills. Both are great and serve the same purpose, but depending on the nature of your requirements, you should buy the one that’s suitable for you. If your work takes you places where it’s hard to find a power source, a cordless hammer drill is a good option. If most of your work is near a power source, the wired hammer drill is a good option. 

Features

Different models offer different features. From basic to advanced, you need to filter out the necessities, and you can let go of the extravagance if your budget doesn’t allow. Key features to look for in a hammer drill are Vibration control features like Rubber Padding, Forward and Reverse Rotation, the Chisel Function, Kickback & Variable Speed Control, and Dust Extraction, etc. 

Specifications 

There are different specifications for different models. You need to compare values like power & Impact power, Speed & Hammering Speed, and, Drilling Depth, etc. to make sure that the model you’re buying is the right fit.

After ensuring that everything is right, you can go ahead with the purchase.

Now, we’re going to review one of the best hammer drills available in the market, and you can read on to see if it’s the right match for you.

Hilti 3536725 SFD 2-A Cordless Hammer Drill/Driver Kit

Hilti 3536725 SFD 2-A is a model from Hilti, with an ergonomic design, and high performance. It is a durable model and is one of the best options for you. 

To know if it’s a right fit for you or not, we’ll need to discuss the specifications and features of this model. So without further ado, let’s begin. 

Features

Ergonomic Design 

This model is designed ergonomically to provide maximum comfort and flexibility to the users. Thanks to the ease of access, users find it easy to use and maneuver. The ergonomic grip and perfect balance results in 

The device is by Hilti, a well-known name in the power tool Industry. You know that you have a great tool when Hilti is behind it. 

Cordless Model

It is a cordless model, and you can use it on the go. It can reach places that any corded model will not be able to reach. It is also lightweight, so you won’t have to worry about being fatigued quickly. Drill away anywhere with ease and precision.

Advanced features 

The model has a precision clutch that provides proper control and is very useful in delicate screw driving jobs. There’s built-in LED for shadow less illumination of the work area. For more efficiency and better motor life, the device has voltage, temperature, and current sensors. 

Specifications

  • The device weighs 6.3 pounds. 
  • Its overall dimensions are 8.1 x 5.7 inches. 
  • The Package contains an SFD 2-1A cordless drill driver; two Battery packs; one Battery Charger; one Belt hook for cordless tools; and a Bag for carrying all these things. 

Buy it on Amazon

It is a good model from Hilti and is a perfect option for heavy-duty jobs. You will not have any problems with it, as long as you take care while working. If you find this model according to your preference, you can purchase it online, or in your nearest hardware store. 

Makita XRH04Z 18V LXT Lithium-Ion Cordless 7/8″ Rotary Hammer: A Review

Makita XRH04Z 18V LXT Lithium-Ion Cordless 7/8″ Rotary Hammer: A Review

A rotary hammer is one of the essentials in any homeowners toolkit. It is a part of the professional world as well, and many professionals like to keep good quality, heavy-duty rotary hammer at their disposal, at all times. So, what makes a rotary hammer […]