Notes

Cheap Drilling In Florida
Hand Held Power Drills - Finding the right Drill For the Job
If you were a specialist contractor who used numerous kinds of drills every day throughout the span of your job, you would probably already know what type of drill you need for a specific job. But, what about the person who can not work with drills every day. This person probably knows a certain job or task requires the use of a drill, but might not be certain about what type of drill is needed. Selecting the best drill can be a daunting task and it's really really no surprise with all the current types of drills to choose from. You have:

basic drills
VSR drills
drill/drivers
hammer drills
impact drivers/wrenches
rotary hammer drills
right angle drills
spade handle drills
Maybe you have recently been looking at drills and have other questions such as for example:

What does VSR mean?
What's the difference between SDS and spline drive?
So how exactly does chuck size matter?
What's the difference between keyed and keyless chucks?
What is a hex driver?
Should I opt for a cordless or corded drill?
What type of cordless battery is best?
What is the clutch used for?
Many years ago, when the first handheld power drills came around, there were not many choices outside of brand names when it found choosing the power drill. Basically, the drills were all corded, all had keyed chucks, and rotated in only one direction and at one speed. So, the choice had not been too difficult. Just select a brand you like.

Things certainly have changed over the years. There are enough possibilities today to generate a person's head spin. There are a lot more variations and innovations in the works as I write this. While the scope of the guide will never be able to cover all sorts of power drill around, we are going to try to cover most of the bases. My goal in writing this article would be to help those who might be having difficulty deciding which kind of drill they want, so let's begin.

The essential corded drill

This is the most elementary of hand held power drills. This is a simple electric drill with one speed and something direction. It really is mainly good for drilling holes in wood, metal, plastic, and soft metals. It isn't a great choice of drill to use for applications such as for example driving screws. Because the speed isn't variable and the drill only operates at an increased RPM, you'll likely either strip the screw head or snap the head off the screw in the event that you tried. You won't likely find a number of these around today as their uses are rather limited.

The VSR drill

VSR means "variable speed reversible". These drills come in both corded and cordless versions as will most all of the drills we discuss from here on out. The drill speed is varied by the quantity of pressure put on the trigger. The farther the trigger is pulled, the bigger the RPM will undoubtedly be. Gleam switch, usually close to the trigger which reverses the operation of the drill. As you can imagine, these have distinct advantages on the basic corded drill. Not only is it able to perform all of the functions of the essential corded drill, there is also an improved suited although still limited ability to drive screws, and small lag bolts. Since the speed is variable, you have the ability to drill into harder material without overheating the bit.

One disadvantage to the type of drill is that trying to maintain a certain RPM with the trigger can be extremely tricky. It takes a certain knack and some getting used to to become in a position to drive screws consistently without stripping the heads, driving the screw too deep, or snapping off the screw head. The reversible feature enables you to remove screws, drive reverse threaded screws, and back out of stock whenever your drill bit gets stuck or jammed.

The VSR drill/driver

The VSR drill/driver has all the capabilities of a standard VSR drill with the added bonus of a lower rpm/higher torque setting. Another feature generally entirely on these drills can be an adjustable clutch. These are probably the most common types of everyday use cordless drills you will see available today. The big advantage with the reduced rpm/high torque setting is that now you can drive screws and lag bolts at the low rpm needed and never have to try to hold the trigger in a particular position. The adjustable clutch could keep you from driving the screw to deep, stripping the screw head, or breaking off the screw head. The clutch may also prevent reaction torque which happens when a bit jams or perhaps a screw bottoms out and the drill tries to twist in the opposite direction. In addition additionally you get higher torque at the reduced rpm setting that you miss out on when using a typical VSR drill and higher torque means more screw driving power. These drills generally have a slide switch that you use to switch between the 2 settings. In the high RPM setting, the drill functions exactly like a standard VSR drill. In the low rpm/high torque setting, the drill becomes a highly effective driver for driving screws and small lag bolts. Many of these drills may have a 3rd intermediate setting that compromises between torque and speed letting you better match the speed/torque setting to the application form.

The VSR hammer drill/driver

Should you drill into concrete, stone, or masonry? If, so, you then would want to look at a hammer drill. This kind of drill runs on the hammer or pounding action because the drill bit rotates. The pounding action of the bit is what enables these drills to bite in to the concrete, stone, or masonry. In the event that you were to try to use a non-hammer type drill, you'll have a hard time penetrating the hardened concrete, stone, or masonry and may likely overheat the bit or the bit would become jammed in the material. When drilling into concrete, stone, or masonry you will also want to be sure and work with a masonry bit. A masonry bit is specially created for drilling into these materials. Depending on material, the drill and the bit used, it is possible to generally expect to have the ability to effectively drill holes in concrete, stone, or masonry around around 1/2" in diameter. VSR hammer drill/drivers have all of the capabilities of a VSR drill/driver in addition to functioning as a hammer drill at the flip of a switch. Due to their versatility, hammer drill/drivers have grown to be a popular choice among both professional contractors and do-it-yourselfers. Some practical uses will be, drilling holes for inserting concrete anchors or TapCon screws for attaching fixtures such as hand railing or light posts to concrete surfaces or attaching fixtures to concrete, block, stone, or brick walls. One of the most highly and professionally rated hammer drill/drivers on the market today is the DeWalt DC925KA.

Rotary Hammer Drills

Think about a rotary hammer drill as a larger, more powerful version of a hammer drill with an added bonus. In addition, it works just like a small jack hammer. These drills focus on the objective of drilling and chipping into concrete, stone and masonry. They're generally not designed for drilling into wood or other similar materials. Rotary hammer drills work with a special bit designed not to slip in the chuck. The most typical types will be the SDS and spline drive. The type of bit you use will depend on the drill. SDS bits can be found in several different sizes, and that means you will need to obtain the size that matches your drill. If you need to drill many larger diameter holes in concrete or stone, then this is the type of dill you will need.

As mentioned, this drill also functions such as a small jack hammer. By flipping a switch you can turn off the rotary action, then insert a chisel bit and you're all set. While rotary hammer drills aren't going to compete with a complete sized jack hammer, they're very useful for most smaller jobs such as removing ceramic and stone tile, removing bricks and blocks from existing wall or floor structures, chipping away unwanted or spilled mortar, chipping the rough edges from concrete, and removing excess concrete from concrete forms or other surfaces.

Traditionally, rotary hammer drills were each of the corded variety since cordless batteries were not able to supply the power needed to operate a rotary hammer drill. However, all that's changing with advancements in lithium-ion batteries and power tool design technology. The popularity of cordless rotary hammer drills is growing rapidly. Some cordless rotary hammer drills rival, and could even surpass the performance of these corded counterparts. One such example is the Bosch 11536VSR which within an HGTVpro saw review was found to drill 1/2" holes in concrete faster compared to the tool's corded counterpart.

Impact Drivers/Wrenches

Impact drivers are quickly becoming a hot item among contractors and do-it-yourselfers and with all the added benefits of a direct effect driver, it's no wonder. If you drive lots of long screws, lag bolts, or have many nuts and bolts you wish to assemble quickly and easily, then an impact driver is for you.

The impact driver functions as a standard VSR drill before time when extra torque is needed. That's when the impact action kicks in. Don't confuse this with the hammer action of a hammer drill. wet tapping is a hammer drill "hammers" on the bit in a lateral direction along the amount of the bit since it rotates where a direct effect driver impacts the chuck of the drill in a rotational direction. The result is a huge increase in torque. The impact action also causes the screw bit to seize the screw resulting in less slippage, reducing the chance of stripping the screw head. Being an added bonus the amount of force the operator must connect with the drill to keep the screw bit from slipping is significantly reduced resulting in less user fatigue.

Impact drivers have an instant change bit holder designed for accepting hex shank bits which are actually common among screw bits and many other drill bits and socket driver bits. This style bit holder really makes changing between bits simple. This bit holder may be the main difference between a direct effect driver and impact wrench. An impact wrench includes a square drive for accepting either 3/8" or 1/2" drive sockets based on the style of impact wrench.

Impact drivers and wrenches also have a size advantage delivering up to 4 times as much torque as a comparable size VSR drill. Therefore an inferior size tool may be used for a particular job which further reduces user fatigue, especially when working overhead. The tiny size also gives you the opportunity to work in tighter spaces and if the impact driver uses lithium-ion technology, then your tool weight is even further reduced.

There is one particular impact driver that sticks out. In an instrument test by Tools of the Trade Magazine, out of 9 top of the line cordless impact drivers, the Milwaukee 9081-22 could outrun the group when pushed to the max. This tool sent 48 4" long Timberlock screws in to the stock before a noticeable battery slowdown was observed. Timberlock screws certainly are a long screw with a hex head. They're commonly used in outdoor applications such as landscaping, fence and deck building since they require no pre-drilling. Just think of the time you could save when armed with an impact driver and screws that want no pre-drilling.

Right Angle Drills

Right angle drills, because the name implies, have the chuck positioned at a right angle to the body of the drill. Right angle drills have the ability to drill in tight spaces where other drills just won't reach such as for example among two closely positioned wall studs which makes these drills particularly ideal for plumbers and electricians.

These drills can be found in both corded and cordless varieties in addition to a wide range of sizes. wet tapping are suitable for small to medium jobs in pine and other soft material. The durable models can handle much bigger jobs in harder material such as for example thick oak. One thing you should be aware of when using the more powerful durable models is reaction torque. Due to the design of right angle drills, if the bit should get stuck, the entire drill body will rotate around the chuck potentially causing injury. It's generally a good idea to brace the drill against a floor, wall, or stud. Some models have a built in torque limiter or clutch to help prevent this occurrence. One particular model that includes a built-in torque limiter is the Makita DA4031 [http://www.thetoolspot.us/Products/Makita/Makita-DA4031/MAKITA-DA4031.html]. This heavy-duty right angle drill was also the overall winner in a Tools of the Trade test of several top grade right angle drills.

Spade Handle Drills

When spade handle drills are mentioned, one might likely think of mixing drywall compound. The mixing of drywall compound or similar substances is among the mostly used applications of spade handle drills. These drills are designed with a minimal rpm, high torque setting that is perfect for mixing drywall mud. Special drywall mixer attachments could be inserted in to the chuck for this function.

While these drills have become ideal for mixing drywall mud and other similar substances which require mixing, this is certainly not the only real use for this kind of drill. The aggressive torque these drills produce make sure they are perfect for boring large holes in wood and other materials using spade bits, auger bits or hole saws up to as large as 5" in diameter.

Several drills have a rocker or similar type of switch for rapid switching between forward and reverse which aids in backing out jammed bits together with mixing drywall mud. In addition, these drills generally have an auxiliary side handle in addition to a spade handle to aid in tool control.

Questions and answers pertaining to power drills.

What does VSR mean?

VSR stands for variable speed reversible. Drills with this feature can easily operate in both forward and reverse rotation and at variable speeds. Probably the drill will have a switch or button for switching the rotation from forward to reverse. Usually the speed varies with regards to to what lengths the trigger is pulled.

What is the difference between SDS and spline drive?

SDS and spline drive refer to two forms of bit technology used in rotary hammer drills. There is really no difference in the performance of both types, so the one you choose will simply be a matter which type your unique rotary hammer drill requires. You can find different sizes of SDS bits which include SDS, SDS+, and SDSmax. Smaller rotary hammer drills will use SDS or SDS+ bits where in fact the larger rotary hammer drills will use SDSmax or spline drive bits. Because the name implies, spline drive bits have a splined shaft, while SDS bits have concave recesses in the shaft.

How come chuck size matter?

Chuck size basically determines what size drill bit you need to use using the size of the drill bit shank. Apart from rotary hammer drills and impact drivers/wrenches designed to use a special kind of chuck, most typical hand held drills come with either a 3/8" or 1/2" chuck. Most of your smaller drills will use a 3/8" chuck as the heavy-duty models typically use a 1/2" chuck. You cannot put a drill bit with a 1/2" shank in a 3/8" chuck, nevertheless, you can put a little with a 3/8" shank in a 1/2" chuck.

What is the difference between keyed and keyless chucks?


Years ago, all hand held drills used keyed chucks. To be able to tighten the chuck down on the drill bit, you would work with a small tool called a chuck key. Most 3/8" chucks and many 1/2" chucks today are actually of the keyless variety. Keyless chucks, because the name implies, usually do not use a chuck key. Instead the chuck is designed so that an individual can easily tighten the chuck down on the bit by hand. While keyless chucks are faster and easier to use, they cannot clamp down onto the bit as tight and therefore do not have exactly the same holding power as a keyed chuck. This insufficient holding power can potentially cause round shank bits to slip in the chuck. This is exactly why you'll still find many heavy-duty high torque drills using keyed chucks.

Exactly what is a hex driver?

A hex driver is merely another name for an impact driver. Hex identifies the type of bit holder the drill uses. These drills use a hex shank bit designed not to slip in the holder. This type of bit holder also makes changing bits a snap. Impact wrenches, on the other hand work with a square drive for accepting either 3/8" or 1/2" drive sockets.

Should I opt for a cordless or corded drill?

This can be a difficult decision for some. The industry trend is ever going a growing number of towards cordless technology. The very first cordless drills that you can buy left much to be desired in both power and run time. Over time cordless technology improved to the stage where many cordless tools now contend with and even oftentimes out perform their corded counterparts. With power and performance becoming near equal, the decision basically boils down to price. Are you willing to stretch your budget and cope with the inconveniences of dragging power cords around, or can you rather spend a bit more and have complete freedom of movement? The choice is yours.

Which kind of cordless battery is best?

The power tool industry is currently trending toward lithium-ion battery technology. With all the current benefits of lithium-ion it is easy to see why. If you compare lithium-ion batteries to nickel cadmium batteries, lithium-ion charges faster, runs longer, maintains longer constant power output, weighs less and stores a charge longer. The disadvantage is that Lithium-ion costs more. However, the difference in price may not outweigh advantages you get in performance and charge holding time.

What's the clutch used for?

Most drill/drivers and hammer drills have an adjustable clutch. The clutch is normally used when driving screws, nuts, or lag bolts. The clutch is designed so that once a certain required level of torque is reached, the clutch will engage and cause the rotation of the chuck to slip and stop rotating. There are several reasons for this. wet tapping , you won't strip the screw head once the bit keeps turning. Two, you will not drive the screw too deep. Three, reaction torque when the screw or nut bottoms out won't twist your wrist. Many drills produce enough reaction torque to cause bodily harm if the clutch is not used. Many heavy-duty drills with the capacity of producing high amounts of reaction torque have either a non-adjustable built in clutch or a built-in torque limiter. An finally, the clutch protects the drill motor from damage.

Homepage: http://www.skinnerhorizontal.com/About-Us.html