Made from HSS-Co, heat treatment to it, high hardness, high wear resistance, high toughness, high bending strength, sharp edge, the best choice for processing
Stainless steel, better than ordinary step drill.
It has these functions that hemp flower drill does not have, such as burrs removing, chamfering, punching elliptic hole, etc.
It is suitable for being installed on the pistol drill and bench drill, applicable for punching on these harder workpieces, such as stainless steel, carbon steel, aluminum plate, iron plate, etc.
Step diameter:3/4/5/6/7/8/9/10/12 mm;Handle length:31 mm;Edge length :50 mm