uxcell 10x160mm Impact Masonry Drill Bit w Chrome Steel Alloy Tipped Drills for Cement,Brick Wall PRODUCT NAME - Impact Drill Bit. MATERIAL - Chrome Steel Alloy;Special Shank : round shank with two hole and two notch. PARAMETER - Shank Diameter : 9mm;Cutting Edge Diameter : 10mm;Cutting Edge Length : 105mm;Total Length : 160mm. APPLICATION - Perfect for cement and brick wall etc hole processing. PACKAGE CONTENT:1pcs x Impact Drill Bit,1pcs x Package Box.