SEC-Grooving Tools GNDL Type / GNDLS Type External Diameter Deep Grooving/Cut-off GNDL WF CDX B External grooving External CW LF LH ■ Parts HF H This figure shows right handed tools. ■ Holders Dimensions (mm) Cutting Cutting Edge Max. groove Cat. No. Stock Height Width Length edge edge Head width (mm) depth (mm) Applicable inserts Cap screw Nm Wrench distance height 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 F GNDL R/L2525M-1.516 D D 25 25 150 25 25 40.0 1.50 16 GCM N150005-GF BX0520 5.0 LH040 GNDL R/L2525M-220 D D 25 25 150 25 25 44.5 2.00 20 (18) GC□ □20SS-□□ Grooving GNDL R/L2525M-320 D D 25 25 150 25 25 44.5 3.00 20(18) GC□ □30SS-□□ Tools GNDL R/L2525M-425 D D 25 25 150 25 25 50.0 4.00 25(23) GC□ □40SS-□□ 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-□□ GNDL R/L3225P-825 32 25 170 25 32 50.0 8.00 25 (23) GCM N80SS-□□ BX0620 6.0 LH050 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 External grooving External WF CDX HF CW LF LH ■ Parts H This figure shows right ■ Holders handed tools. Dimensions (mm) Cutting Cutting Edge Max. groove Cat. No. Stock Height Width Length edge edge Head width (mm) depth (mm) Applicable inserts Cap screw Nm Wrench distance height 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. F28 D mark: Standard stock (expanded product)  N m Recommended tightening torque (N・m)