Diamond Engraving Bit, 3mm

Diamond engraving bit to engrave on hard surfaces like glass, metal and granite.  It consist of a 3mm stainless steel shaft with an industrial diamond mounted at the front and sharpen to an angle of 90° or 120°.

 This diamond engraving bit is available in 2 angles, 90° and 120° angles.  The 90° works better on very hard smooth surfaces like glass and metal. The 120° works better on softer uneven materials like stone and tiles.