h CWh CW AH7025T9225 T9125 AH7025 AH725 GH130 NS9530 DGL External grooving and parting RE 7˚ INSL Ref. P Steel M Stainless K Cast iron N Non-ferrous S Superalloys : First choice H Hard materials : Second choice Coated External Designation SeatsizeCW±0.05 RE INSL h Internal DGL3-025 3 3 0.25 z 20 5 DGL4-030 4 4 0.3 z 20 5 DGL5-030 5 5 0.3 z 25 5.5 Face DGL6-080 6 6 0.8 z 25 5.5 z: Line up Parting Others DTR Profiling and undercutting (for high precision) RE 7˚ INSL Ref. P Steel M Stainless K Cast iron N Non-ferrous S Superalloys : First choice H Hard materials : Second choice Coated Cermet Designation SeatsizeCW±0.02 RE INSL h DTR300-150 3 3 1.5 z z z z z z 20 5 DTR400-200 4 4 2 z z z z z z 20 5 DTR478-239 5 4.78 2.39 z z z z z z 25 5.5 DTR500-250 5 5 2.5 z z z z z z 25 5.5 DTR600-300 6 6 3 z z z z z 25 5.5 z: Line up Reference pages: Toolholders → F137 - F143, Standard cutting conditions → F157 F150 www.tungaloy.com