4pcs 4/6/8/10mm Spear Head Drill Bits Tungsten Carbide Tile Glass Drill Bit

Features:
These carbide spear point with uniquely sharpened edges for easy penetration in glass, mirrors, ceramics and hard brittle materials.
Cuts perfectly round holes without chipping or breaking the material.
The drill hole is smooth and complete, it won't produce shock phenomenon, easy to position.
Small incision resistance,can improve working speed and easy to operation.
Use for Ceramic Tiles, Mirror and Glass.
Highspeedsteel,Durable

Specification:
Material: Cemented Carbide
Drill Model: 4mm / 6mm / 8mm / 10mm
Shank Size:
1. 10mm: 7mm x 80mm(D*H)
2. 8mm: 5mm x 72mm(D*H)
3. 6mm: 4mm x 70mm(D*H)
4. 4mm: 3mm x 60mm(D*H)
Quantity: 1 set (4pcs)

Package include:
4 x Drill Bits








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