The result is that the motor is still turning, but the screwdriver bit isn't. Why does a drill need a clutch? It gives you control so you don't strip a screw or overdrive it once it's snug.
It also helps protect the motor when a lot of resistance is met in driving a screw or tightening a bolt. The number of separate clutch settings varies depending on the drill; better drills have at least 24 settings. With that many clutch settings, you can really fine-tune the power a drill delivers. Settings with the lowest numbers are for small screws, higher numbers are for larger screws. Most clutches also have a drill setting, which allows the motor to drive the bit at full power.
The least expensive drills run at a single speed, but most have two fixed speeds: rpm and rpm. A slide switch or trigger lets you select high or low speed. These drills are ideal for most light-duty operations. The low speed is for driving screws, the high speed for drilling holes.
For more refined carpentry and repair tasks, choose a drill that has the same two-speed switch and a trigger with variable speed control that lets you vary the speed from 0 rpm to the top of each range. And if you do more hole drilling than screwdriving, look for more speed — 1, rpm or higher — at the top end.
Nickel-metal-hydride NiMH batteries represent the latest breakthrough in batteries. They're smaller and run longer than standard nickel-cadmium Nicad batteries. NiMH batteries also pose less of a hazard when it comes to disposal than Nicads because they don't contain any cadmium, which is highly toxic.
All cordless drills come with a battery charger, with recharge times ranging from 15 minutes to three hours. But faster isn't necessarily better. A contractor might depend on fast recharges, but slower recharging isn't usually a concern at home, especially if you have two batteries. What's more, there are drawbacks to fast charging. A quick recharge can damage a battery by generating excessive heat, unless it's a specially designed unit.
Shop products. What drill do I need? Read now. Cordless or corded? Drill features explained Read now. Power types Read now. Drill bits explained Read now. Our drill brands Read now. Drill drivers Perfect for smaller household jobs. Shop drill drivers. Impact drivers Specifically designed to do one job — to drive in screws. Shop impact drivers.
Combi drills Very versatile and a great all-rounder. Shop combi drills. Hammer drills A heavyweight that is specifically designed to drill into stone, masonry and concrete. Shop hammer drills. SDS rotary hammer drills Highly specialised, and more expensive, drills that are more powerful than standard hammer drills. Shop SDS rotary hammer drills. Cordless Cordless drills are a very popular choice for good reason. However, another Amazon buyer says the longevity of this inexpensive drill is poor.
Ultimately, it's the low price that will grab your attention with this power tool. Pros: Extremely low price point for a power drill with battery and charger, handles simple jobs around the house adequately, lightweight design is good for working above your head, offers good battery lifespan.
Cons: Cannot handle heavy-duty jobs with limited power, longevity of this tool is questionable, chuck may not hold bits tightly. If your honey-do list is larger than your budget, you need a powerful drill at a great price. It has enough power for all types of jobs, yet it's small enough that you won't feel like you have too much tool for your needs.
Even though this drill offers a volt drilling power rating, it weighs less than you'd think, making it comfortable to use, according to the Tool Guyd review. The Pro Tools Reviews agrees, saying this drill qualifies as a compact model, which isn't common with a 20V power drill. One Amazon buyer likes the ability of this Porter-Cable drill to deliver plenty of power, even though it's a lightweight model. Ratingle appreciates the construction of this powerful Porter-Cable drill, including the rubber bumper guards all around the tool that protect it from bumps when working in tight spaces.
The kit includes two rechargeable batteries, making it a good value. However, one Amazon reviewer says the drill's chuck doesn't hold bits tightly enough for heavy-duty work. Cons: Most volt drills offer a larger maximum speed rating, chuck may not hold bits as tightly as needed. Although cordless drills are incredibly popular right now, some people don't need a cordless option. If you primarily work in your workshop, a corded drill will fit your needs nicely. One Amazon buyer agrees that this Makita drill is an excellent choice for mixing as well as for boring holes.
The Power Drill Guru says the adjustable D-handle at the back of the Makita drill provides a nice level of comfort that cordless drills cannot duplicate. An Amazon reviewer says this Makita corded drill runs quietly, while providing excellent power. However, the Versus review was disappointed in the maximum drilling speed this Makita corded drill offers at RPM. Cons: Use of a cord limits the drill's portability, maximum rotational speed of only RPM, high price point.
No toolkit is complete without a great measuring tape. From the professional contractor's work to the DIY home repair, countless projects call for precise measurements. With a good set of tools, you can repair a crooked cabinet, hang a shelf or picture frame, tune up your bicycle, or fix a leaky pipe under the sink.
The Stanley Piece Tool Kit is our top choice because it comes with many tools you'll use all the time, it has only the tools you need, and each item is well-made. From painting the nursery to changing a light bulb or hanging holiday lights, everyday life often calls for a ladder.
The Little Giant Foot Multi-Use Ladder is our top choice because it allows for safe use up high, in stepladder configuration, and even on the stairs.
We've also included step ladders and heavy-duty ones for outdoor use. From temporary uses like hanging lights during the holidays or powering tools for a home repair project to more permanent applications like connecting a floor lamp to that outlet hidden behind the couch, extension cords are a must-have for modern life.
The Coleman 16 Gauge Extension Cord is our top choice because it's durable, flexible, and suitable for just about every application in and around the home. Sure, hammers have a pretty simple design, but that doesn't mean all hammers are created equal.
This reduces friction and increases strength, allowing SDS drills to punch through the toughest materials with ease. Special SDS drill bits are used to eliminate the bit slipping and also to withstand the powerful force of its hammer action. These drills make light work of chiseling and chasing jobs.
Designed to handle breaking up hard materials like concrete, asphalt, bricks and blocks. Breakers and demolition drills deliver more powerful blows to the surface and can also be used to chisel channels in masonry and remove tiles. Depth stop: Fitted to the side of the drill, a depth stop can be adjusted to ensure that the hole being drilled does not exceed the desired depth.
This feature can also give you a consistent depth when making multiple holes. Trigger-activated LED: A handy feature to have, especially in dark conditions, is a trigger-activated LED light that automatically lights up when the speed trigger is pulled. The light will automatically switch off a few seconds after the trigger is released. Auxiliary handle: An auxiliary handle improves both safety and accuracy when drilling. The extra handle can be positioned on either the left or right side of the drill and helps to increase the users force and control compared to just using the pistol grip handle.
When selecting your drill, the drill's grip should feel comfortable to hold with an ergonomic design. Forward and reverse function: Drill drivers have a reverse function, which allows you to turn the drill bit or screwdriver bit forwards, as well as backwards.
Reverse mode is also convenient when backing out the drill bit after boring holes. Keyless chuck: The chuck is at the front of the drill and holds the drill bit or screw bit. A keyless chuck means you can change bits quickly and easily, without the need for additional tools.
If too much torque is chosen, the screw can be driven too deeply. The excess power can also cause a loss of control and accuracy, causing damage to the work surface. Gears: Drills with more than one gear let you select different speed ranges. If the drill is a single gear drill, you can control the speed with the speed control trigger.
The gear control switch is usually located on the top of the drill. Integrated belt clip: Free your hands quickly and easily with an integrated belt clip, attached to the drill. Speed: Measured in revolutions per minute RPM.
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