MRMN Grooving Inserts Manufacturer & Supplier in China
Source standard and custom MRMN carbide grooving inserts from China. Review verified designations, dimensions, applications, holder information, and drawing-based customization requirements.
What Is a MRMN Grooving Insert?
An MRMN insert is a double-ended, hole-free carbide insert with full-radius cutting ends for form grooving and profiling in compatible self-grip style holders. The numeric size identifies nominal cutting width in the verified range, while length, height, clamping dimension, radius, top geometry, and holder seat must also match.
Key Specifications
Insert Shape
Double-ended full-radius grooving and profiling insert
Insert Configuration
Hole-free self-grip style; 2 opposed full-radius cutting ends
Tolerance Control
Cutting width, radius, profile, and seat dimensions defined by approved specification
Verified Designations
MRMN 200, 300, 400, 500, 600
Holder Matching
Match complete insert and holder or blade designation before use
Primary Applications
Full-radius grooving, profiling, recessing, selected parting work
Custom MRMN Insert Options
Configure the key manufacturing details for your insert application, from dimensions and cutting material to edge condition and identification.
Dimensions & Tolerances
Specify insert dimensions and tolerances according to your drawings.
Cutting Material & Grade
Select insert material and grade to suit your machining application.
Top Geometry & Chip Control
Customize top geometry and chip control features for your cutting needs.
Edge Preparation
Specify edge honing, chamfers and other edge preparation options.
Coating & Surface Treatment
Choose coating and surface treatments to meet your cutting needs.
Marking & Packaging
Customize insert markings and packaging to meet your order requirements.
Available MRMN Grooving Insert Sizes
CarbideMatch can manufacture MRMN inserts to the verified designations below and review custom width, radius, edge preparation, substrate, coating, marking, and packaging requirements. Send the full designation, groove drawing, holder information, work material, cutting conditions, sample, and forecast quantity for technical review and quotation.
ISO Designation
L (mm)
W (mm)
H (mm)
R (mm)
MRMN 200-M
16
2
3.5
1
MRMN 300-M
21
3
4.8
1.5
MRMN 400-M
21
4
4.8
2
MRMN 500-M
26
5
5.8
2.5
MRMN 600-M
26
6
5.8
3
Don't See the Configuration You Need?
The configurations shown above represent commonly requested options and may not include everything we can supply. Contact us to check another specification or discuss your custom requirements.
MRMN Grooving Insert Applications
MRMN inserts should be applied only after the insert seat, holder system, cutting width, radius, maximum cutting depth, hand, and operating conditions have been confirmed.
External Grooving
Producing radial grooves on outside diameters after confirming holder seat, width, reach, and center-height alignment.
Parting-Off
Separating bar or component stock with controlled overhang, rigid clamping, coolant access, and chip evacuation.
Shoulder Recessing
Machining a narrow relief near a shoulder where holder access and side clearance have been checked.
Repeated Groove Production
Producing repeat grooves when insert seating, indexing, width control, and inspection method remain consistent.
MRMN Grooving Insert FAQ
How should incoming MRMN inserts be dimensionally inspected?
Use a documented sampling plan and calibrated optical or contact equipment appropriate to the tolerance. Check width, radius, profile, seating surfaces, edge condition, and lot traceability without contacting a fragile cutting edge incorrectly.
How can edge chipping be separated from normal flank wear?
Inspect the edge under magnification and compare its location and pattern. Random fractures often indicate impact, vibration, chip recutting, or an unstable seat, while progressive uniform wear develops more continuously along the engaged edge.
How should unused MRMN inserts be stored?
Keep inserts separated in clean original-style trays, dry, clearly lot-labelled, and protected from edge-to-edge contact. Do not mix trial lots or return used inserts to a new-insert compartment.
Should a worn MRMN insert be reground?
Regrinding changes the cutting width, profile, edge preparation, coating, and seating relationship. Treat it as a separately engineered item and validate the revised geometry rather than returning it to service as an unchanged standard insert.
Which records make a production trial useful?
Record part and machine identifiers, lot number, edge index, actual speed and feed, coolant, overhang, cut count or time, measured groove results, chip photographs, and the final wear or failure mode.
Why is the MRMN cutting radius normally half the nominal width?
The verified full-radius series uses a semicircular end profile, so the standard radius is half the cutting width; any modified profile must be identified on the drawing rather than assumed.
About CarbideMatch
CarbideMatch is a cutting-tool manufacturer and multi-brand distributor with years of OEM manufacturing and industry experience. We currently focus on carbide and indexable inserts across a wide range of brands, grades and specifications.
Search by part number, ISO/ANSI code, grade or application to quickly identify suitable inserts and compatible alternatives
- Own Manufacturing Capabilities
- Multi-Brand Product Supply
- Application-Based Grade Matching
How We Work
Search by part number, ISO/ANSI code, grade or application — or send us your requirements and let us help match the right insert.
01
Submit Requirements
Share the part number, drawing, material or cutting conditions.
02
Review Application
We verify specifications, operation and performance goals.
03
Match the Solution
We match the right inserts to your materials, cutting conditions and requirements.
04
Quote & Sample
Confirm pricing, availability and samples when required.
05
Inspect & Deliver
Products are checked, securely packed and shipped on schedule.
06
Ongoing Support
We support trial feedback, repeat orders and optimization.