name of commodity: electroplate  diamond drill bit
Place of Origin: Guangzhou, China (Mainland)
Brand Name: cihui
Material : emery powder and metal
manufacturing process: electroplate
handle type: straight -shank
Use: drill of glass or ceramics
blade thickness: 1mm
outside diameter:3~100mm(0.11~3.93 inch)
Usage:install in drilling machine to drill glass or ceramicsPackaging Details: carton

feature:
Easy to use

high quality

Wearable and No chipping

Long service life

Low cost