Glass Drill Bits
Detailed Product Description
Glass&Tile drill
1. Super hard carbide tip, good quality Cr40 shank, auto-welding with silver material, or HF welding;
2. Drilling on glass, granite, tile and glass material, good concentricity and sharp tip could guarantee the concentricity and good quality;
3. Heat-treatment: auto net belt stove handling equipment, could meet strictly torsion test;
4. Surface treatment: Zinc-coated, black finished, electric-plated and sand-washed etc..
*Spear-pointed carbide tip reduces breakouts when drilling
*Straight shank
*Coating:zinc,black oxide,chrome,black&white