John Frei Custom Workbench Genuine Bench Pin GemOro Tubes designated T6 are 6/8

Tubes designated T6 are 6/8 inch (3/4 inch or 19 mm) in diameter

Round graver profile suited for line work

5mm) 4B-948 Platinum

Glardon-Vallorbe files are graded from 00 (coarsest) to 6 (finest)

103 LP1560-4-2 4 in (100 mm) 2 (Medium) 131

John Frei Custom Workbench Genuine Bench Pin GemOro Tubes designated T6 are 6/8The John Frei Custom Workbench Genuine Bench Pin is designed to fit John Frei Custom Workbenches with minimum modifications, if any at all. A notch in the tang accommodates the bench block bolt, ensuring a proper, secure fit without the need for additional alteration. Crafted in the USA, this is noted as the last of the genuine American made bench pins of its kind a distinction that carries real weight for professional jewelers who rely on quality