Drill America 36-Piece 5.90mm x 93.00mm Black Oxide Coated HSS Twist Drill Bit

Drill America DWDN Series General Purpose Drill Bit is a dependable, general purpose drill designed to perform in a broad range of materials in the iron and steel families. Ideal for production, maintenance or portable drilling jobs. Surface treated with abrasion-resistant black oxide. 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 tool holding systems.