MRMN grooving inserts cover selected nominal groove widths from 2 to 6 mm. The M suffix remains part of the complete public type and must be included when requesting a quotation.
Product Overview
Ordering code
Key dimensions
Application note
MRMN200-M
L = 16.0; CW = 2.0; d = 1.65; RE = 1.0
External grooving; order by complete model
MRMN300-M
L = 21.0; CW = 3.0; d = 2.35; RE = 1.5
External grooving; order by complete model
MRMN400-M
L = 21.0; CW = 4.0; d = 3.3; RE = 2.0
External grooving; order by complete model
MRMN500-M
L = 26.0; CW = 5.0; d = 4.1; RE = 2.5
External grooving; order by complete model
MRMN600-M
L = 26.0; CW = 6.0; d = 5.0; RE = 2.5
External grooving; order by complete model
How to Select
Confirm nominal groove width and required corner radius.
Confirm the compatible holder system and maximum groove depth.
Provide workpiece material and whether the cut is continuous or interrupted.
Check coolant access and overhang before setting cutting data.
Grade & Coating Selection
The insert ordering code defines the geometry and dimensions. The coating is selected through the JetEdge grade according to the workpiece material and cutting condition.
ISO material
Recommended grade direction
Coating route
Selection note
P Steel
JE7025P general / JE7015P precision
PVD
Select by stability, pitch or groove load
M Stainless steel
JE6025M general / JE6015M finishing / JE6035M tougher conditions
PVD
Prioritize edge sharpness and stable chip evacuation
K Cast iron
JE4025K general / JE4015K finishing
CVD
Confirm continuous or interrupted condition
S Heat-resistant alloys
JE5025S general / JE5015S finishing
PVD
Confirm heat, coolant and interruption conditions
Grade availability for each insert family is subject to confirmation.
Before ordering: provide the complete MRMN-M type, holder model, groove width/depth, workpiece material and cutting condition.
