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

Stone Tools ST-333 1/2-Inch, 1/18-Inch and 1-3/8-Inch Sizes Titanium Step Drill Bit Reviewhttp://tinyurl.com/kgtdzjj Stone Tools ST-333 1/2-Inch, 1/18-Inch and 1-3/8-Inch Sizes Titanium Step Drill Bit Cuts 10 different hole sizes from 1/4-Inch to 1-3/8-InchLasts 6 times longer and penetrates 75-Percent faster than high speed steel step drill bitsIdeal for tough cutting jobs and industrial productionRuns cooler, requires 25-Percent less forceDesigned with a double flute for smooth fast penetration