3 Review(s)

About the item?Special Designe?- Slotted edge makes it more sharp;works more efficient; Side open can remove the waste to keep the drill bit clean?Advantage?- Nickel plating on these bits maximizes your tools life with great resistance to corrosion?Application?- Perfect set for cutting accurate holes in a wide variety of materials such as glass and ceramics?Material?- Diamond coating maximizes performance and retains a sharper cutting edge than traditional carbide or bimetal hole saws?Parameter?- Drilling Diameter:12mm/0.47inch; Drilling Depth: 25mm/1inch; Total Length: 50mm/2inch;Material:Carbon Steel