Stone Tools ST-333 1/2-Inch, 1/18-Inch and 1-3/8-Inch Sizes Titanium Step Drill Bit by Stone Tools

Description

Cuts 10 different hole sizes from 1/4-Inch to 1-3/8-Inch; Lasts 6 times longer and penetrates 75-Percent faster than high speed steel drill step bits; Ideal for tough cutting jobs and industrial production; Runs cooler, 25-Percent less force; Designed with a double flute for smooth fast penetration.