Free Shipping! Diameter 15mm~80mm,Standard 1/2'' GAS Diamond countersink complete cone for glass arrissing

Brand Name: KM
Type: Countersink Drill Bit
Origin: CN(Origin)
length: 70~80MM
Model Number: D12A
Material: Diamond
Shank: Standard 1/2'' GAS Connection
Grit: 150# /180#