Diamond core drill is used to core the sapphire crystal. According to the specification of sapphire ingots, the high precision core drills are generally divided into 2in, 4in, 6in, 8in and various non-standard sizes. The effective drilling depth is generally 150mm~300mm.

Main features

Sharpness-no fish scales, cracks, etc.

High precision-outer circle run-out<0.015mm .

Effectively reduce the reclaiming allowance and the subsequent processing allowance.

Good batch stability.