The Precision Twist D000 jobber-length, carbide-tipped, straight flute, round shank, die drill performs best when drilling holes into alloy steel or hardened and tempered steel. It can drill to a depth up to four times the diameter of the drill size. The shank diameter is the same as the drill size.
The D000 series has straight flutes which help prevent the bit from digging in. The uncoated finish help increase chip flow in soft materials. Round shanks allow use with a wide variety of tool holding systems.
A high speed or cobalt steel tipped with carbide, is many times harder/stiffer than high-speed steel (HSS), will hold an edge longer, will deflect less than HSS, and are more resistant to heat than HSS. These qualities allow it to run at higher speeds and feeds. They are made to ANSI industry (fractional sizing) standards, which ensure that drill bits around the world conform to the same specifications.
Drilling, or hole making, is the most common metalworking operation in the world. Twist drill bits are the most common type of drill bit used. Twist drill bits are commonly used to drill holes with hand-operated drills, standalone drill presses, or lathes. The flutes of the drill bit act a passageway for chip extraction from the hole and for coolant to enter the hole. These drill bits have a right-hand twist that brings chips up and away from the cutting edge.
Precision manufactures machine tools under the following brands: Precision Twist, Precision Dormer, and Union Butterfield. They have locations around the world, and provide tools adhering to ANSI, NAS, and DIN standards.