Cutting Diameter Description Series Page Depth .625 - 1.25 - S0_SK, WB_SK 423 Conical Shanks .312 - .750 - S0_CA, S0_SA, S0_HA 430 Straight Shank, No Neck .25 - 1.00 - ER_SA 425 Integral ER-Adaptor .300 - .940 - T_SA 426 Extension .315 - 1.001 - 4RJ 430 Blanks .315 - .630 - 4RB 430 Ball Nose Blanks .075 - .405 - 18T_RSO00 429 T-Slot Preform Blanks .250 - 1.000 .50 - 2.00 Roughing End Mills, 3-flute, 46C_RM 432 38° Helix, w/Chipsplitters .125 - 1.000 1.50 -4.50 Precision End Mills, Medium and 47J_RD, 48J_RDLong Length, 45° Helix433 .250 - 1.000 .50 - 1.50 Precision End Mills for Aluminum, 45J_RD, 46J_RD 434 45° Helix 389