L.H. Dottie RTTP6020 Step Drill Bit, 1/4-Inch to 1-1/8-Inch Base and Tip Reviewhttp://is.gd/Q4S5Xh L.H. Dottie RTTP6020 Step Drill Bit, 1/4-Inch to 1-1/8-Inch Base and Tip A real money saver base bits last 3 to 4 times longer at a fraction of the costEconomical replaceable tips lock in placeStep bit performance remains identical to that of non replaceable tip bitsConstructed of M2 high speed steel, coated with titanium and cobaltTri-cut tip cuts smoother, faster and cooler
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