GRS 003-522 MagnaBlock With Attachment Set Donnegan 35mm) Abrasive Material Powdered diamond

35mm) Abrasive Material Powdered diamond in rubber matrix Grits Included Extra Fine (Pink)

11 precision-cut narrow oval cavities (60% ratio)

High Speed Steel is a harder material than Tungsten Vanadium Carbon Steel

Available in six precious metal options to match any earring construction

GRS 003-522 MagnaBlock With Attachment Set Donnegan 35mm) Abrasive Material Powdered diamondGRS MagnaBlock With Attachment Set (003 522) is the top of the line engraver's block for professionals who demand strength, precision, and versatility. Its heavy 30 lb (13. 7 kg) stainless steel body and precision bearing system deliver ultra smooth, stable rotation for engraving, stone setting, and advanced workholding tasks. Two industrial ball bearings plus a large roller thrust bearing eliminate play and wear for the life of the block. Hardened