TopGroove™ Choosing the Correct TopGroove Cutter 2 Identify the material to be machined: P Steel Each tool has a material grid marked with a letterindicating the materials that can be machined. M Stainless Steel K Cast Iron N Non-Ferrous S High-Temp Alloys H Hardened Materials 3 Select your toolholder based on the TopGroove™ application: Toolholders A Choose the appropriate gage insert (width) required for the application.BChoose the shortest cutting depth “CD”dimension for increased tool rigidity. B CD H C C Select the largest toolholder shank “H” F B4 B 3° and “B” dimensions for maximum rigidity. L2 L1 n NS C B A hex/ gage clamp clamp Torx order number catalogue number H B F L1 L2 B4 CD insert clamp screw screw Plus right hand 3641682 NSR1010E2 10,0 10,0 14,0 70 19 9 4 N.2R CM74 MS1200 — T10 3641660 NSR1212F2 12,0 12,0 16,0 80 19 9 4 N.2R CM74 MS1200 — T10 3636542 NSR1616H2 16,0 16,0 20,0 100 19 9 4 N.2R CM74 MS1200 — T10 3638589 NSR2020K2 20,0 20,0 25,0 125 19 9 4 N.2R CM74 MS1200 — T10 3638588 NSR2020K3 20,0 20,0 25,0 125 32 13 5 N.3R CM72LP — MS2111 25 IP 3638590 NSR2525M2 25,0 25,0 32,0 150 19 9 4 N.2R CM74 MS1200 — T10 3636536 NSR2525M3 25,0 25,0 32,0 150 32 13 5 N.3R CM72LP — MS2111 25 IP 3636540 NSR2525M4 25,0 25,0 32,0 150 35 14 7 N.4R CM72LP — MS2111 25 IP 3641664 NSR3225P3 32,0 25,0 32,0 170 32 13 5 N.3R CM72LP — MS2111 25 IP 3641675 NSR3225P4 32,0 25,0 32,0 170 35 14 7 N.4R CM72LP — MS2111 25 IP 3641666 NSR3232P3 32,0 32,0 40,0 170 32 13 5 N.3R CM72LP — MS2111 25 IP 3641669 NSR3232P4 32,0 32,0 40,0 170 35 14 7 N.4R CM72LP — MS2111 25 IP left hand 3641683 NSL1010E2 10,0 10,0 14,0 70 19 9 4 N.2L CM75 MS1200 — T10 3641681 NSL1212F2 12,0 12,0 16,0 80 19 9 4 N.2L CM75 MS1200 — T10 3636545 NSL1616H2 16,0 16,0 20,0 100 19 9 4 N.2L CM75 MS1200 — T10 3639045 NSL2020K2 20,0 20,0 25,0 125 19 9 4 N.2L CM75 MS1200 — T10 conventional modular application toolholders blades O.D. Grooving and Plunge and Turn pages E74–E76 — I.D. Grooving pages E78–E79 — widia.com E43