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abra abrasive grain abrasive wheels aluminous abrasive aluminum oxide Alun Alundum arc of contact attachment bearings bond bushing Cam Grinding camshaft cast iron chilled iron chine chips chuck circular saw clearance corundum crankshaft Crys cup wheel cutter cylinder wheel cylindrical grinding machine depth of cut designed diameter diamond dresser drill edges employed factor finish flanges flat form grinding gear grain and grade grain depth grinding operation grinding wheel ground hard hardened steel hole hood increased internal grinding machine lathe lathe tool manganese manufacture master cams material metal method milling cutters model cams Norton obtained Off-hand periphery piece pins pistons polishing production radial depth regrinding removed roll rough grinding shaft shape Sharpening silicon carbide smooth Snagging softer spindle steady-rest stones straight wheel Surface Grinding Machine tapered thickness tion tool usually valve vitrified wheel face wheel slide wheel speed wheel wear width