Drillco 29 piece screw machine length drill set. Screw machine drills are designed for use in machines and portable drilling in hard sheet metal alloys such as stainless and titanium. Because of their heavy duty construction, and ease of penetration stemming from the split point with which they are normally furnished, wide applications have been found in machine and portable drilling. High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Black oxide treatment adds lubricity and creates small pockets on the surface of the tool that act to hold coolant near the cutting edge. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging.
Whats in the Box? 29 screw machine length drill bits ranging in size from 1/16" to 1/2" in 1/64" increments