30pcs 2.5mm Cylinder Flat Diamond Bit Grinding Needle Power Grinder Carving Tools for Jades

About this item

• Feature: 1. 30pcsset, 150 grit drilling bits with 2.5mm0.10in grinding head, 3mm0.12in shank Diameter and 45mm1.77in length. 2. Cylindrical shaped flat drill bits for finedetail drilling with the cutting power of diamond. 3. Black nickel treatment, greatly improve the hardness, improve the efficiency of engraving. 4. CNC milling handle bar without skipping, ensures the stability of grinding. 5. Highstrength and hightemperature resistant, durable and will not drop sand. Specification: Condition: 100percent Brand New Item Type: Grinding Bits Material: Diamond Color: As Pictures Shown Grit: 150 Grit Shank Diameter: Approx. 3mm0.12in Length: Approx. 45mm1.77in Bit Diameter: Approx. 2.5mm0.10in Quantity: 30pcsset. Package List: 1 x 2.5mm Grinding Bits Set (30pcs) Note: 1. The grinding bits shall be clamped firmly when installing, and there shall be no pulsation!2. The rotation speed should be as high as possible, and the linear speed should be no less than 1020 ms.3. This product is 3mm handle, please check the clamping range of the machine before purchase!30pcsset, 150 grit drilling bits with 2.5mm0.10in grinding head, 3mm0.12in shank Diameter and 45mm1.77in length. Cylindrical shaped flat drill bits for finedetail drilling with the cutting power of diamond. Black nickel treatment, greatly improve the hardness, improve the efficiency of engraving. CNC milling handle bar without skipping, ensures the stability of grinding. Highstrength and hightemperature resistant, durable and will not drop sand.