Patented Spear Porcelain&Stone Drill Bit

1, Patented stepped design of the spear carbide tips with Wave faster drilling performance
2, 4 sided design diamond ground with aggressive cutting edges(special sharpening).
3, Fast spiral with tightened pitch.
4, Total length improved.
5, Aggressive tip improve precision and penetration.
6, Drilling through up to class 5 ceramic tiles.
7, Better resistance to high temperature when drilling.
8, Speed up dust extraction and ideal for deep materials.
9, Suitable for more materials: non-tempered glass, plastic, composite, brick, marble, granite, etc.
10, Vacuum copper alloy soldered guarantee the heavy-duty drilling work.