We specialize in the production of diamond drill Sharp,wear-resisting No jumping edge Long service life require lower WOB,high rotary speed and small flow rate, good concentricity Wildly used in cutting glass Diameter: 5mm - 100mm. Total length: 70mm,75mm,90mm,95mm Dig holes. 4000+ ---- 8000+ Classed by suitable equipments : 1. Straight shank 2. Cone shank 3. Threaded shank Segment Height: 10mm Wall Thickness: 0.8mm-1mm