4-piece glass working set
2 diamond grinding bits and 2 silicon carbide grinding bits.
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.