Nakanishi Diamond Drill 13852 1 piece

Catalog number: 13852 Features: ●This is a twist drill (steel) with diamond electroplating coating. Applications: ●Drilling low-hardness semi-precious stones, marble, bone, agate, crystal, etc. Specifications: ●Total length (mm): 44 ●Grain size (#): 140 ●Shaft diameter (mm): 2.34 ●Blade diameter (mm): 0.9 ●Blade length (mm): 8 ●Maximum operating speed (rpm): 15000 ●Quantity: 1 piece ●Abrasive grain: Diamond Caution: ●For safety, be sure to wear protective equipment such as safety glasses. ●Use at or below the maximum operating speed.