Diamond Chainsaw Grinding Wheel for carbide carbide tipped chain saw sharpening. CBN grinding wheels for HSS steel chain sharpening. Diameter: 4 (104 mm), 5 3/4 (146 mm) and 8 (203 mm) Inner Hole: 7/8 (22,23 mm), but every wheeles with the reducing spacer which reduces bore size to 12 mm For 8 (203 mm) wheels bore diameter is 1 (25,4 mm ...
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