
SEC-Grooving Tools GNDL Type / GNDLS Type External Diameter Deep Grooving/Cut-off GNDL CDX WF B External grooving External LF CW LH ■ Parts HF H This figure shows right handed tools. ■ Holders Dimensions (mm) Cutting Cutting Edge Max. groove Stock Height Width Length edge edge Head Cat. No. distance height width (mm) depth (mm) Applicable inserts Cap screw Nm Wrench R L H B LF WF HF LH CW CDX GNDL R/L2020K-1.2516 D D 20 20 125 20 20 38.0 1.25 16 GCM N125005-GF GNDL R/L2020K-1.516 D D 20 20 125 20 20 38.0 1.50 16 GCM N150005-GF GNDL R/L2020K-220 D D 20 20 125 20 20 44.5 2.00 20(18) GC□ □20SS-□□ GNDL R/L2020K-320 D D 20 20 125 20 20 44.5 3.00 20 (18) GC□ □30SS-□□ GNDL R/L2020K-425 D D 20 20 125 20 20 50.0 4.00 25 (23) GC□ □40SS-□□ GNDL R/L2020K-525 D D 20 20 125 20 20 50.0 5.00 25 (23) GC□ N50SS-□□ GNDL R/L2020K-625 D D 20 20 125 20 20 50.0 6.00 25(23) GC□ N60SS-□□ GNDL R/L2525M-1.2516 D D 25 25 150 25 25 40.0 1.25 16 GCM N125005-GF GNDL R/L2525M-1.516 D D 25 25 150 25 25 40.0 1.50 16 GCM N150005-GF F GNDL R/L2525M-220 GNDL R/L2525M-320 D D D D 25 25 25 25 150 150 25 25 25 25 44.5 44.5 2.00 3.00 20 (18) 20(18) GC□ □20SS-□□ GC□ □30SS-□□ BX0520 5.0 LH040 Grooving GNDL R/L2525M-425 D D 25 25 150 25 25 50.0 4.00 25(23) GC□ □40SS-□□ Tools GNDL R/L2525M-525 D D 25 25 150 25 25 50.0 5.00 25(23) GC□ N50SS-□□ GNDL R/L2525M-625 D D 25 25 150 25 25 50.0 6.00 25(23) GC□ N60SS-□□ GNDL R/L3225P-320 32 25 170 25 32 44.5 3.00 20(18) GC□ □30SS-□□ Grooving GNDL R/L3225P-425 32 25 170 25 32 50.0 4.00 25(23) GC□ □40SS-□□ Cut-Off GNDL R/L3225P-525 32 25 170 25 32 50.0 5.00 25 (23) GC□ N50SS-□□ GNDL R/L3225P-625 32 25 170 25 32 50.0 6.00 25 (23) GC□ N60SS-□□ Threading GNDL R/L3225P-725 32 25 170 25 32 50.0 7.00 25 (23) GCM N70SS-□□ BX0620 6.0 LH050 GNDL R/L3225P-825 32 25 170 25 32 50.0 8.00 25 (23) GCM N80SS-□□ GNDL R/L3232P-320 D D 32 32 170 32 32 44.5 3.00 20(18) GC□ □30SS-□□ GNDL R/L3232P-425 D D 32 32 170 32 32 50.0 4.00 25 (23) GC□ □40SS-□□ GNDL R/L3232P-525 D D 32 32 170 32 32 50.0 5.00 25 (23) GC□ N50SS-□□ BX0620 6.0 LH050 GNDL R/L3232P-625 D D 32 32 170 32 32 50.0 6.00 25 (23) GC□ N60SS-□□ GNDL R/L3232P-725 D D 32 32 170 32 32 50.0 7.00 25 (23) GCM N70SS-□□ GNDL R/L3232P-825 D D 32 32 170 32 32 50.0 8.00 25(23) GCM N80SS-□□ Use a combination of an insert and a holder with the same edge width CW. The maximum groove depth in parentheses is the value when using a profiling insert (RG type/RN type chipbreaker). See F29 for applicable inserts. L-Shaped (Horizontal) Tools for External Grooving GNDLS B WF External grooving External CDX HF CW LF ■ Parts LH H This figure shows right ■ Holders Dimensions (mm) handed tools. Cutting Cutting Edge Max. groove Stock Height Width Length edge edge Head Cat. No. distance height width (mm) depth (mm) Applicable inserts Cap screw Nm Wrench R L H B LF WF HF LH CW CDX GNDLS R/L2020K-216 D D 20 20 125 38 20 25 2.0 16 GC□ □20SS-□□ GNDLS R/L2020K-316 D D 20 20 125 38 20 25 3.0 16 GC□ □30SS-□□ GNDLS R/L2525M-218 D D 25 25 150 45 25 25 2.0 18 GC□ □20SS-□□ GNDLS R/L2525M-318 D D 25 25 150 45 25 25 3.0 18 GC□ □30SS-□□ BX0520 5.0 LH040 GNDLS R/L2525M-423 D D 25 25 150 50 25 25 4.0 23 GC□ □40SS-□□ GNDLS R/L2525M-523 D D 25 25 150 50 25 25 5.0 23 GC□ N50SS-□□ GNDLS R/L2525M-623 D D 25 25 150 50 25 25 6.0 23 GC□ N60SS-□□ Use a combination of an insert and holder with the same edge width CW. See F29 for applicable inserts. D mark: Standard stock (expanded product) N m Recommended tightening torque (N・m) F28