IntroductionIntroduction GBA type

Inserts identification system

Tolerance symbol Insert length

MM class2020 mmHand of tool
SeriesGG class3030 mmNNeutral

GD M S 30 20 N 040 GM

Number of edges Edge width Corner-R (RE) Chipbreaker symbol

Without indication 2-edge202 mm0200.2 mmGMGrooving and turning
S 1-edge303 mm0300.3 mmGLLow feed
404 mm0400.4 mmGSLow cutting force
150R1.5 mm (Full-R)CMCopying
PHHigh speed
GGNBWithout chipbreaker

DM Grooving GH High feed grooving Toolholder identification system Cutting diameter

Toolholder hand øDmax

RRight-handShank size
38 mm
LLeft-hand16 x 16 mm
D38
KGDR1616 JX3Integral type for automatic lathe
T06
Integral type
Toolholder lengthApplicable inserts
GDM / GDSMMax. depth of cut
A32J110R6 mm 06 3-4 mm 200
B40JX120S250
C50K125T300
D60L140U350
E70M150V400
F80N160W450
G90P170Y500
H100Q180XSpecial

Toolholder hand

RRight-handShank size
LLeft-hand20 x 20 mm
KGD
R2020X3T10S
KGDSSeparate type / unit description
Toolholder ypeApplicable insertsMax. depth of cut
Unit descriptionGDM / GDSM1010 mm

3-4 mm