■ Made of premium grade HSS
■ Clear Size Marking for Easy-to-find
■ Drill Tip with Double Rear Angles, for Good Centering
■ Titanium coated
■ 13PCS 1.5,2.0,2.5,3.0,3.2,3.5,4.0,4.5,4.8,5.0,5.5,6.0,6.5mm