Cutting Diameter Description Series Page Depth 47C, 47D .312 - 1.000 .20 - .88 0° Lead, 45° Helix, Center Rough-fin Solid 392 Cutting for Roughing & Finishing Carbide End Mill Tip 47C, 48C .312 - .750 .20 - .62 0° Lead, 45° Helix, Solid Carbide 393 Center Cutting Serrated Roughing Tip 46J, 46D .312 - .500 .20 - .37 0° Lead, 45° Helix, Solid Carbide Center 394 High Precision Cutting End Mill Tip 47J, 47D, 47C .312 - 1.000 .20 - .88 0° Lead, 38° Helix, Solid Carbide End 395 Center Cutting Mill Tip, Variable Pitch 47J, 47D .312 - .750 .20 - .62 0° Lead, 45° Helix, Solid Carbide Center 396 High Precision Cutting End Mill Tip .250 .20 0° Lead, 45° Helix, 47JEnd Mill Tip 397 Center Cutting 48D, 48J, 49D, 49J .312 - 1.000 .20 - .88 0° Lead, 45° Helix, Solid Carbide 398 Not Center Cutting Finishing End Mill Tip 45D, 45J, 46D, 46J .312 - .750 .20 - .50 0° Lead, 45° Helix, End Mill Tip 399 Center Cutting, Polished, Sharp for Aluminum .375 - .625 .38 - .60 0° Lead, 45DDrill Mill Tip 400 Center Cutting 45V .375 - .625 .38 - .60 3° Back Draft, Flat Bottom 401 Center Cutting Plunge Tip 386