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Saturday, May 7, 2011

Drills, and other drill like things.

Since I seem to be lacking inspiration at the moment, I think I'll just talk about tools for a bit. Today's topic is just as the topic suggests.
I'll start with the cordless drill/driver, probably the most common variant of the drill these days.
Author: Luigi Zanasi
These are extremely versatile, as they can easily drill holes and drive screws. The most distinctive feature of this type of drill is the clutch. It is adjustable so that it will disengage when a certain torque is reached. This is helpful for preventing screws from being overdriven. The main disadvantages of these tools are that they are not well suited to continuous use in tough materials, and can slip easily when driving screws.

Next, the corded drill.
These are best suited to drilling large numbers of holes, in harder materials. They can be used for driving screws, but as these drills are considerably more powerful than cordless drills, they can quite easily overdrive screws. They are also harder to control, and are much heavier.

The two above types of drill are often available as hammer drills. This adds a specialized clutch that can be set to produce a hammering action, for masonry drilling. This adds weight to the drill, but can be very useful for infrequent light masonry drilling, . If you need to do a lot of masonry drilling, buy a rotary hammer instead. A hammer drill takes a ridiculous amount of time to drill any type of masonry other than mortar joints.

Moving on, we have the impact driver.

This tool, rather than a normal chuck, is designed to accept only screwdriver heads. It turns the head by means of a hammering action, which also prevents slippage. It's also much lighter. It's main disadvantage is that it does not provide precise torque control, so care must be taken not to overdrive screws.

In my opinion, these are the three most important drill like things to be aware of.

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