Step DRL #4T 3/16 to 7/8" TiN 12 SZ

This IRWIN Unibit No. 4T 3/16 to 7/8 Inch Titanium Nitride Coating Fractional Self-Starting drill bit makes drilling holes easier and more convenient. This bit helps you produce holes in thin materials such as copper, steel, brass, plastic, aluminum and laminates. This hole drilling bit features 12 hole sizes ranging from 3/16 inches to 7/8 inches in increments of 1/16 of an inch for precision drilling. This Irwin drill bit has a Titanium Nitride Coating that provides the cutting edge a longer life span. Its cutting edge is single-fluted to allow for easier control of the tool as well as the production of rounder holes. The SpeedPoint tip allows for faster penetration.