
SEC-Grooving Tools
GNDN Type
Clamp-on
Necking for Necking
GNDN
Fig 1
45°
DMIN
WF
B
Necking
WF2
LF
Grooving
APMX2
AP
45°
MX
Tools
CW
LH
APMX2
HF
H
Figure shows right hand (R) tool. F
Holder Parts Dimensions (mm)
Cutting Cutting Min.
Stock Height Width Overall Edge Edge Head Off Work Width Cap Screw Wrench
Length Distance Height Set Diameter of Cut Applicable
Cat. No. APMX APMX2 Fig
Insert
R L H B LF WF HF LH WF2 DMIN CW Nm
GNDN R/L2020K-215-020 ● ● 20 20 125 23 20 35 3.0 20 2.0 1.5 0.64 GCM N2010-RN 1
GNDN R/L2020K-320-020 ● ● 20 20 125 23 20 35 3.0 20 3.0 2.0 0.79 GCM N3015-RN 1
GNDN R/L2020K-430-030 ● ● 20 20 125 24 20 37 4.0 30 4.0 3.0 1.29 GCM N4020-RN 1 BX0520 5.0 LH040
GNDN R/L2020K-535-030 ● ● 20 20 125 25 20 40 5.0 30 5.0 3.5 1.44 GCM N5025-RN 1
GNDN R/L2020K-640-030 ● ● 20 20 125 25 20 40 5.0 30 6.0 4.0 1.59 GCM N6030-RN 1
GNDN R/L2525M-215-020 ● ● 25 25 150 28 25 35 3.0 20 2.0 1.5 0.64 GCM N2010-RN 1
GNDN R/L2525M-320-020 ● ● 25 25 150 28 25 35 3.0 20 3.0 2.0 0.79 GCM N3015-RN 1
GNDN R/L2525M-430-030 ● ● 25 25 150 29 25 37 4.0 30 4.0 3.0 1.29 GCM N4020-RN 1 BX0520 5.0 LH040
GNDN R/L2525M-535-030 ● ● 25 25 150 30 25 40 5.0 30 5.0 3.5 1.44 GCM N5025-RN 1
GNDN R/L2525M-640-030 ● ● 25 25 150 30 25 40 5.0 30 6.0 4.0 1.59 GCM N6030-RN 1
Combine the insert with a holder such that the width of cut (CW) matches.
Identification Code
GND N R 20 20 K - 2 15 - 020
Series Application Feed Shank Shank Shank Width APMX × 10 Min. bore
Symbol: Direction Height Width Length of Cut (mm) diameter
Necking (mm) (mm) (mm) (mm)
GNDN Type Inserts ( Coated Carbide)
Fig 1
2-RE
CW
L
S
Profiling / Radius Grooving / Necking Dimensions (mm)
AC520U
AC530U
AC425K
AC830P
Width of Cut Nose Overall
Pcs/Pack
Thickness
Appearance Cat. No. CW Radius Length Fig
Width of Cut Tolerance RE L S
RN GCM N2010-RN Q Q ● ● 2.0 ±0.03 1.0 21.7 3.6 1
GCM N3015-RN ● ● ● ● 3.0 ±0.03 1.5 22.4 3.8 1
GCM N4020-RN ● ● ● ● 4.0 ±0.03 2.0 28.0 4.0 5 1
GCM N5025-RN ● ● ● ● 5.0 ±0.03 2.5 28.1 4.1 1
General-purpose GCM N6030-RN ● ● ● ● 6.0 ±0.03 3.0 28.1 4.5 1
N m Recommended Tightening Torque (N·m)
F37