JY diamond core drill bit for glass，core drill bit ，core drill bit for glass，diamond core drill bit. No damage to the edge, high drilling efficiency, more wear resistant and quick hole drilling and steady drilling with better smoothness. Spear point reduces cutting pressure for cleaner holes.
*More wear resistant and quick hole drilling *No damage *Steady drilling with better smoothness *High drilling efficiency *Spear point reduces cutting pressure for cleaner
*Professional Manufacturing Since 1987 *Pay attention to the details all the time *Strict Quality Control *Adequate Inventory *Experienced Service Team *Certificated Factory
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