Proxxon - 4-piece glass working set Engraving Bits
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.
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