DeWalt Drill Drivers

DeWalt DC742KA 12v Drill Driver

DeWalt DC742KAV 12v Cordless Drill Driver
- Compact, lightweight design.
- 17 position adjustable torque control for consistent screwdriving into a variety of materials with different screw sizes.
- Ergonomically designed trigger and rubber grip.
- 10mm Chuck

Specifications:
Battery : 2 x 1.3Ah NiCd
Torque Control : 17 Stage
No Load Speed RPM : 0-400 / 0-1400
Drilling Capacity:
Metal : 10mm
Wood : 25mm

Typical examples of 12v Cordless Drill Drivers include the Black & Decker CP12KB 12v Drill Driver, Bosch GSR12-2 12v Drill Driver, DeWalt DC7442AV 12v Drill Driver, Hitachi 12DVF3 12v Drill Driver, Makita 312DWDE3 12v Drill Driver, as well the Ryobi CHD1202 12v Drill Driver

In the event that 14.4v Cordless Drill Drivers are better suited, then be sure to check out the Black & Decker CD14CA 14.4v, Bosch PSR14Li-2 Lithium Ion 14.4v, DeWalt DC757KA 14.4v, the Hitachi DSDL Li-Ion 14.4v,Makita 6337DWDE3 14.4v, and the Ryobi CHD-1441 14.4v

For coverage of your 18v Cordless Drill Drivers longings, go take a look at the Black & Decker CD18CA 18v, Bosch GSR 18v, DeWalt DC920KB 18v, Hitachi DS18DL 18v, the Makita 6390DZ 18v or the Ryobi CCD-181M One+ 18v

DIY: Do It Safely

The first aspect you may look at when purchasing a cordless drill driver may be the battery pack as the more volts your cordless drill driver has the more torque you may get. This essentially means that the motor may spin faster creating greater power. The only drawback with this is that the more volts your drill has the heavier it may be.

Electric rotary drill drivers are made mainly for drilling metal and wood. This type of drill is normally small and compact. Motor sizes range from around 500 watts. The lower wattage motors are ok for drilling small holes or minimal use, the more powerful motored machines may cope with larger size holes and more frequent use. The chuck size is another thing to check, the smaller drill drivers have a chuck which may only accept drill bits up to 10mm diameter the larger chuck size is 13mm.

Any tool may feel like an extension of your hand. The tool may feel great while standing in the store aisle but try to imagine what it may feel like after a few hours of use. While in the store make sure all controls are convenient, and check to see if the forward/reverse and high/low speed switches in particular are easy to use.

A reversible drill is a must should you plan on using the drill with screwdriver bits. Torque is the term utilized to describe the rotational pressure exerted by the drill. Today's higher voltage cordless drill drivers may provide nearly the same amount of torque as a corded model. Yes, bigger is better, but increased power almost always brings increased size and weight. Unless you plan on drilling with large self-feeding or auger bits, think about a more compact model with a lower torque. Because there is no industry standard for measuring torque, be aware that you cannot compare the torque ratings of drill drivers from one brand to another.

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. Makita, Bosch, Hitachi and DeWalt offer NiMH batteries, and other manufacturers may soon produce these power cells too.

If a Li-ion battery is stored with too low a charge, there is a risk of allowing the charge to drop below the battery's low-voltage threshold, resulting in an unrecoverable dead battery. Once the charge has dropped to this level, recharging it can be dangerous. Some batteries therefore feature an internal safety circuit which may prevent charging in this state, and the battery may be for all practical purposes dead. In circumstances where a second Li-ion battery is available for a given device, it is recommended that the unused battery be discharged to 40% and placed in the refrigerator to prolong its shelf life. While the battery can be utilized or charged immediately, some Li-ion batteries may provide more energy when brought to room temperature.

For many applications around the house a small set of common twist bits may normally serve your needs. You'll also need a drill to turn the bits and some tools to measure and mark where you want the hole. This includes a ruler or tape measure, a pencil or scribe and should working with metal, a centre punch and a hammer. The first and most important step is marking where you want the hole. You can also use a scribe on wood or plastic. Sometimes even a pencil may work well. As long as you can see your marks and they don't rub off when working your material it doesn't normally matter. Without a punch mark, the bit would drift around. If it did eventually catch, it would quite likely be in the incorrect location.

A drill without a drill bit is useless. A drill bit is the piece at the end of the drill that does the actual drilling. Drill bits come in a wide variety of sizes (diameter) and length. First you have to insert the bit into the drill. The end of the drill’s barrel has an opening. Insert the dull end of the drill bit into this hole. Now you have to tighten the drill bit into this hole so the bit is secure and does not come free. This is accomplished in one of two ways. The many traditional way is to use a chuck key. The chuck key is a small piece of petal shaped in a right angle. One piece of the key fits into the tightening collar around the bit. There is a hole there for that purpose. Then you simply turn the key clockwise tightening the collar over the bit. Turn it clockwise to tighten. Turn it counter-clockwise to loosen the collar and free the bit. When you do this make certain the drill is unplugged from its power source. This is a safety precaution. The second way does not include a chuck key. Instead there are usually two tightening collars. The bit is inserted in the outer most collar. Grasp this collar with one hand holding it steady. With a small bit of power provided by squeezing the trigger the loose collar spins freely and tightens the bit into the collar. If you want to tighten the bit the collar must spin clockwise. If you want to loosen the bit the collar must turn counter-clockwise. The direction of the collar’s spin is determined by moving a switch on the drill usually located nearby the trigger. Now your drill is ready to go. You now have the correct bit size and it is securely settled into the drill. You are ready to drill. First make certain the bit is the suitable material for the material you are drilling. Select a bit made for metal should you are drilling through metal and select a bit made for wood when drilling through wood. Using the incorrect bit may damage the bit and perhaps not accomplish the task. Using a wood bit on metal often does not penetrate the metal. When you have marked on the material to be drilled where you want the hole mark it with a pencil or marker with a dot or ‘x’. Place the drill bit exactly on the mark, squeeze the drill trigger and give just the slightest push to the drill. Let the drill do the work. Be patient and don’t pressure the drill bit through the hole. Try to keep the drill as perpendicular to the material as possible.

Usually referred to as twist drill bits, twist bits are probably the many common drilling tools utilized by the handyman with either a hand or electric drill. The front edges cut the material and the spirals along the length remove the debris from the hole and tend to keep the bit straight. They can be utilized on timber, metal, plastics and similar materials. Most twist bits are made from either High Speed Steel (HSS) or Carbon Steel. High Speed Steel bits are suitable for drilling many types of material. When drilling metal the HSS stands up to the high temperatures. Carbon steel bits are specially ground for drilling wood and may not be utilized for drilling metals as they tend to be more brittle and less flexible than HSS bits.

DIY Safety tips:

If a fuse blows for no obvious reason or an appliance is not working properly, switch off the appliance at the plug and unplug it before trying to find out why. If the fault can't be found or you are uncertain how to find the fault, get expert help. The same principles apply to fuse boxes or circuit breakers - always switch off at the mains before you investigate and remember to replace the cover before switching back on.
Always use the correct tools for the job. It is worth investing in high quality equipment as this may be safer and may probably do the job quicker.

Take extra care when removing artex or textured paint from walls as these materials may contain asbestos. Safety precautions must be followed when handling and disposing of asbestos. Contact your local environmental health department for help.

Do not work with electricity in damp or wet conditions. If you MUST, always use an RCD. Always place the cable of a hedge trimmer or mower over your shoulder and keep it behind you at all times.

Always read the labels on materials to ensure that you know what safety precautions are required and action to be taken in the event of an accident. Many products give off harmful vapours. The recommendations regarding ventilation and/or respiratory protection may always be followed.

DeWalt DC742KAV 12v Drill Driver

DeWalt Drill Drivers

DeWalt DC742KA 12v Drill Driver

DIY: Do It Safely