BITS

      Bits (drill points) have a variety of uses with braces and drills. Each bit and drill is designed for a particular use and should be used for its intended job. Bit diameters are usually marked by a single number-the numerator of a fraction. For example,Twist bits are usually marked in the same manner by 64ths of an inch. They are used in both wood and unhardened metals to make clearance holes for bolts, screws, etc., and to make holes for tapping. Only bits marked HS or HSS are suitable for drilling in metals. Common sizes run from 1/64" to 1/2" diameter by 64ths. Bits are designed for use with power drills and have self-starting tips eliminating the need for center punching. They can be used on all materials, but are especially designed for use on metals.