DIAMOND BUR, SINTERED, Medium 240 grit 2.34mm mandrel(hp)Inverted cone, flat top 5.5x6mm

The sintered diamond head of these rotary burs are made up completely of a diamond matrix. Ideal for cutting hard material, lasts MUCH longer than a standard plated diamond bur. These Diamond Bits are designed for aggressive and faster grinding for higher productivity and time saving Extremely durable, long lasting and economical. - Glass, Jewelry, Lapidary &  Lab Sintered Diamond Bur HP Shank - Diamond rotary instrument for precision work - Ideal deterioration and finishing of surface applications