Cutting Diameter Description Series Page Depth 45A .375 - .750 .02 - .06 High Feed Roughing, Solid Carbide 402 Center Cutting Ultra High Feed Tip .314 - 1.000 .016 -.145 High Feed Roughing,Center Cutting 47A, 48A4 & 6 FluteHigh Feed Tip403 48U .375 - .625 .19 - .35 Back Draft Finishing, Solid Carbide 404 Not Center Cutting Backdraft Toroidal .312 - .625 .31 - .63 Straight Ball Nose 45BBall Nose Tip 405 .312 - .625 .31 - .63 High Precision Tip for 45BBall Nose Tip 405 Hardened Steel 45X .375 - .750 .33 - .66 Straight 406 Straight Ball Nose Ball Nose Tip 45B, 47B .312 - .750 .20 - .62 High Precision 407 Helical Ball Nose Ball Nose Tip 47B .250 .20 High Precision 408 Helical Ball Nose Ball Nose Tip 45B .312 - .750 .20 - .50 Helical Ball Nose Tip 409 Helical Ball Nose for Aluminum 45N, 45M, 45P .315 - .390 .14 - .29 Chamfer and 410 30°, 45°, 60°, 72° Center Cutting Spotting Tip 387