For engraving, grinding or frosting glass.

Diamond bit 1: ball Ø 1.0mm, diamond bit 2: ball Ø 1.8mm,silicon carbide bit cone 3/2 x 5mm, and bullet 2/2.5 x 7mm. All shafts Ø 2.35mm.

Set Includes:2 x Diamond grinding bits, 2 x Silicon carbide grinding bits.