Internal grooving GMM/GMG/GMGA type

GMM/GMG/GMGA

Carbon steel / Alloy steelPQP
Stainless steelQPM
Cast ironQPK
Non-ferrous metalsQN
Titanium alloyQS
Hard materials (~40 HRC)ON
H
Hard materials (40 HRC ~)

Dimension (mm) Tolerance Carbide Cermet

Insert Description CW CW CVD PVD - - Applicable toolholder

CW S RE INSL

min.max.CR9025 PR905 PR915 PR930 KW10 TN90
Shows GMM2420-02

2° GMM 8030-080MW 2 8 5.5 0.8 30 - 0.05 + 0.05

INSLREUUUUU
Chip control oriented / M class
RE
G&

2° KIGM U ...8

INSL GMG 8030-050MG 285.50.530- 0.03 + 0.03U U U U U
15°KIGMUR ...8
Sharp cutting oriented / Precision class
(ground chipbreaker)
INSLRE
GMGA 8030-400R2 85.5430- 0.02 + 0.02U

Full R / Copying / Sharp cutting oriented / Precision class If using a full-R insert with KIGM-8 toolholder, you need to modify the corner of insert adapter of toolholder. KIGM (Internal grooving)

DCON LH DMIN

KIGMU (Internal grooving / Undercut grooving)

CW

Toolholder dimensions

45°

LH

H CW LF Right-hand shown

DCON

H LF Right-hand shown

Availabi- lityDimension (mm)Spare Clamp boltparts Wrench (hex.)
DescriptionR LCDXDMINDCONHLHapCW min.CW max.LFWF
KIGM&6540B-8N N20654036418830041
KIGMUR6540B-8N654036832.28830026HH6X20LW-5

CDX shows available grooving depth. ap shows the distance from the internal face of the workpiece.