
GROOVE-TURN
LH
CUTDIA
GHGR/L
External Holders for Deep HF H
Grooving and Parting HBH
WB
CWN-CWX OAL=LF
WF B
Left-hand shown
Designation CWN(3) CWX(4) CUTDIA(5) H HF B OAL LH WF WB HBH
GHGR/L 20-2 (1) 0.40 2.40 34.0 20.0 20.0 20.0 120.00 33.0 19.20 1.70 - SR M5X16 DIN912 HW 4.0(a)
GHGR/L 25-2 (1) 0.40 2.40 34.0 25.0 25.0 25.0 140.00 33.0 24.20 1.70 - SR M5X16 DIN912 HW 4.0(a)
GHGL 16-3 3.00 4.00 40.0 16.0 16.0 16.0 110.00 36.0 14.70 2.50 4.0 SR M6X16 DIN912 HW 5.0(a)
GHGR 16-3 3.00 4.00 40.0 16.0 16.0 16.0 110.00 36.0 14.70 2.50 -
GHGR/L 16-3 ST (2) 3.00 4.00 34.0 16.0 16.0 16.0 78.00 33.0 15.00 2.40 4.0 SR M6X16 DIN912 HW 5.0(a)
GHGR/L 20-3 3.00 4.00 40.0 20.0 20.0 20.0 120.00 36.0 18.70 2.50 - SR M6X16 DIN912 HW 5.0(a)
GHGR/L 25-3 3.00 4.00 40.0 25.0 25.0 25.0 140.00 36.0 23.70 2.50 - SR M6X16 DIN912 HW 5.0(a)
GHGR 16-4 4.00 5.00 40.0 16.0 16.0 16.0 110.00 36.0 14.40 3.20 4.0 SR M6X16 DIN912 HW 5.0(a)
GHGR/L 20-4 4.00 5.00 40.0 20.0 20.0 20.0 120.00 36.0 18.20 3.50 - SR M6X16 DIN912 HW 5.0(a)
GHGR/L 25-4 4.00 5.00 40.0 25.0 25.0 25.0 140.00 36.0 23.20 3.50 - SR M6X16 DIN912 HW 5.0(a)
GHGR/L 25-425 4.00 5.00 50.0 25.0 25.0 25.0 140.00 41.0 23.20 3.50 - SR M6X16 DIN912 HW 5.0(a)
GHGR/L 25-5 5.00 6.40 50.0 25.0 25.0 25.0 140.00 41.0 22.90 4.20 - SR M6X16 DIN912 HW 5.0(a)
GHGR/L 32-5 5.00 6.40 50.0 32.0 32.0 32.0 150.00 41.0 29.90 4.20 - SR M6X16 DIN912 HW 5.0(a)
GHGR/L 25-630 6.00 8.00 60.0 25.0 25.0 25.0 140.00 45.0 22.30 5.40 - SR M6X16 DIN912 HW 5.0(a)
GHGR/L 32-632 6.00 8.00 64.0 32.0 32.0 32.0 170.00 50.0 29.40 5.40 - SR M6X16 DIN912 HW 5.0(a)
• For machining depth over 13 mm, a single-ended insert is required (GIM, GIMF,GIMY,GIMT,GIMN) • CDX for grooving depth depends on part diameter Dmax
• For grooving a part with a diameter larger than CUTDIA, see next table • For using TIP and GIVR/L inserts, tool holder seat needs to be modified according to insert profile
to ensure clearance
• For user guide, see pages 475-492
(1) In the case of inserts with CW<2 mm, tool pocket should be ground to 0.3 mm thinner than the insert’s grooving width.
(2) For Star and multi-spindle machines.
(3) Minimum cutting width
(4) Maximum cutting width
(5) Maximum parting diameter
(a) For optional key with limited tightening torque see page 484
For inserts, see pages: GIA-K (W=3-6) (329) • GIF (328) • GIF (full radius) (329) • GIF-E (W=4-6 full radius) (324) • GIF-E (W=4-6) (322)
• GIG (326) • GIM-C (587) • GIM-J (587) • GIM-J-RA/LA (588) • GIM-UT (589) • GIM-UT-RA/LA (590) • GIM-W (588) • GIM-W-RA/LA (589)
• GIMF (317) • GIMM 8CC (664) • GIMN (319) • GIMT (316) • GIMY (318) • GIMY (full radius) (320) • GIMY-F (321) • GIP (327)
• GIP (flat top CW