■ Drill Bit with 5% Co for Long-Life Usage
■ Drill Tip with Double Rear Angles, for Good Centering
■ 19PCS 1.0,1.5,2.0,2.5,3.0.3.5,4.0,4.5,5.0,5.5,6.0,6.5,7.0,
■ 7.5,8.0,8.5,9.0,9.5,10mm