PROXXON 28920 4pcs Glass Working Set

2 diamond grinding bits and 2 silicon carbide grinding bits.

For engraving, grinding or frosting glass.

1 diamond grinding bit, round Φ 1/32" (1.0mm),

1 diamond grinding bit, round Φ 5/64" (1.8mm),

1 Silicon-Carbide mounted point, flat-end taper Φ 3/32" x 9/32" (2.5 x 7mm),

1 Silicon-Carbide mounted point, flame Φ 3/32" x 13/64" (2.5 x 5mm).

All shafts Φ 2.35mm.