7PCS Punching Hole Working Set Ultimate Drill Bits Multifunctional Ceramic Glass

Description:
Made of fine quality material, low resistance, high hardness, improving work efficiency.
The design of triangle shank makes the clamping more tight and does not slip.
U-shaped spiral is smooth and flat, and the drilling is smoother.
Strong toughness and wear resistance, can be installed in electric drills.
Provides smooth and accurate drilling in tile, brick wall, wood and so on.

Total length:
3mm cutting diameter: 80mm
4mm cutting diameter: 80mm
5mm cutting diameter: 80mm
6mm cutting diameter: 100mm
8mm cutting diameter: 110mm
10mm cutting diameter: 120mm
12mm cutting diameter: 120mm

Features:
Type: Drill Bit
Material: Hard Alloy
Quantity: 7Pcs/Pack
Tool Holder Type: Triangle Handle
Cooling Type: Outer Cold
Blade Top Corner: 135°
Category: Hole expansion drill
Size: 3mm, 4mm, 5mm,6mm, 8mm,10mm,12mm

Package includes:
1 x 7Pcs Set (3 4 5 6 8 10 12mm)