Irwin (928) 15502 IRWIN Unibit 3-Piece Titanium Step Drill Set (15502)

Irwin 15502 UniBit 3-Piece HSS TiN Coated Step Drill Bit Set. Irwin Tool's Unibit HSS Fractional TiN is Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates Single-flute cutting edge for greater control through steps 3 flatted shank prevents slipping in drill chuck New SpeedPoint tip penetrates faster than previous Unibits and prevents walking. Features: Non-Skid self-starting tip eliminates skidding and the need for center punching. 3 flatted shank prevents slipping in drill chuck. As many as 13 different hole sizes in a single bit eliminates the need to maintain a toolbox full of specific size drill bits. Ideal for drilling holes in thin materials (up to 3/8”). Single-Fluted cutting edge helps assure true round holes and allows greater control with less vibration. Laser Marked sizes for easy hole size identification. Hardened steel for long lifeSet Contents: 10231, 10232 and 10233.