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Double-Sided 6-Edge Milling Inserts

WNMU Carbide Milling Inserts

Compare WNMU040304, WNMU060408 and WNMU080608 double-sided carbide inserts by dimensions, geometry and grade options. Match each size to compatible MFWN04, MFWN06 and MFWN 0806 cutter platforms for efficient 90° shoulder, face and side milling.

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WNMU double-sided carbide insert range

WNMU dimensions: IC, T, D, BS and RE

Insert Sizes040304, 060408 and 080608

Cutting Edges6 usable edges from a double-sided design

Milling DirectionApproximately 90° shoulder and face milling

Cutter PlatformsMFWN04, MFWN06 and MFWN 0806

Grade OptionsD530, D570, D580, D8420A and D9920S

Main ApplicationsShouldering, facing, side milling and metal removal

Browse by Size

WNMU Insert Sizes and MFWN Cutter Platforms

Select the insert size from the complete cutter-body model. Cutter diameter alone is not enough to confirm the pocket, screw or WNMU platform.

WNMU040304EN

Compact MFWN04 Platform

6.75 mm IC, 3.18 mm thickness and 0.40 mm corner radius for compatible small-diameter MFWN04 cutter holders.

View WNMU040304 specifications

WNMU060408EN

General MFWN06 Platform

9.53 mm IC, 4.00 mm thickness and 0.80 mm corner radius for compatible MFWN06 cutter holders.

View WNMU060408 specifications

WNMU080608

Large MFWN 0806 Platform

Three complete geometry options for compatible MFWN face mills and FMWN R/L 0806 cutter bodies.

View WNMU080608 models

Insert Identification

What Is a WNMU Milling Insert?

WNMU is a double-sided trigon-shaped indexable milling insert family with three cutting edges on each side, providing six usable edges in compatible cutter bodies.

The complete designation identifies the insert shape, relief direction, tolerance, clamping form, size and geometry. WNMU040304, WNMU060408 and WNMU080608 use different pockets and cannot be selected only from the word “WNMU”.

W80° Trigon ShapeThree corners on each side

N0° ReliefDouble-sided insert direction

MM ToleranceDimensional tolerance class

UClamping FormHole and chip-form configuration

EN, EN-ZL and EN-GH are retained as parts of the complete model. Use the full designation when ordering or checking cutter compatibility.

Dimensions and Grade Options

Complete WNMU Insert Models

Compare IC, thickness, mounting-hole diameter, land width, corner radius, geometry and grade options for every listed WNMU model.

IC — Inscribed-circle dimension T — Insert thickness D — Mounting-hole diameter BS — Land width RE — Corner radius Unit — Millimetres

How to Use the Specifications

Start from the cutter pocket and current insert code. Confirm every dimension and retain the complete EN, EN-ZL or EN-GH geometry when requesting a replacement.

Grade availability is model-specific. Do not assume that every grade is offered for every WNMU size or geometry.

WNMU040304

WNMU040304EN Inserts for MFWN04 Cutters

Complete Designation	IC (mm)	T (mm)	D (mm)	BS (mm)	RE (mm)	Geometry	Grade Options	Cutter Platform
WNMU040304EN	6.75	3.18	3.18	0.60	0.40	EN	D530D570D580	MFWN04

WNMU060408

WNMU060408EN Inserts for MFWN06 Cutters

Complete Designation	IC (mm)	T (mm)	D (mm)	BS (mm)	RE (mm)	Geometry	Grade Options	Cutter Platform
WNMU060408EN	9.53	4.00	3.50	1.30	0.80	EN	D530D570D580	MFWN06

WNMU080608

WNMU080608 Inserts for MFWN and FMWN 0806 Cutters

Complete Designation	IC (mm)	T (mm)	D (mm)	BS (mm)	RE (mm)	Geometry	Grade Options	Cutter Platform
WNMU080608EN	14.02	6.65	6.20	1.30	0.80	EN	D530D570D580	MFWN / FMWN 0806
WNMU080608EN-ZL	14.02	6.65	6.20	1.30	0.80	EN-ZL	D8420AD9920S	MFWN / FMWN 0806
WNMU080608EN-GH	14.02	6.38	4.60	1.30	0.80	EN-GH	D8420A	Confirm the exact 0806 cutter pocket

WNMU080608EN-GH uses different thickness and hole dimensions from the EN and EN-ZL models. Verify the cutter pocket before substitution.

Carbide Grade Direction

WNMU Grade Options by Material and Cutting Condition

First select a grade that is available for the complete WNMU model, then match the grade direction to the workpiece material, machining stability and wear mode.

D530

Steel and cast-iron direction where toughness and interrupted-cut reliability are important.

D570

General steel and stainless-steel direction, including stable and finishing-oriented machining.

D580

Steel and cast-iron direction for selected stable machining conditions.

D8420A

Stable cast-iron machining direction, available on selected WNMU080608 geometries.

D9920S

Hardened and difficult-material direction, available on WNMU080608EN-ZL.

MFWN shoulder milling cutter using WNMU inserts

Cutter Compatibility

Match WNMU Inserts to MFWN Milling Cutters

The WNMU size must match the complete cutter-body model, pocket, screw and geometry. Do not select the insert only from the cutter diameter.

MFWN04 Platform

Uses WNMU040304EN in compatible compact right-angle milling cutter holders.

MFWN06 Platform

Uses WNMU060408EN in compatible medium-size right-angle milling cutter holders.

0806

MFWN / FMWN Platform

Uses WNMU080608 models in compatible face mills and FMWN R/L cutter bodies.

The complete cutter model determines the correct WNMU geometry. Confirm the pocket before changing between EN, EN-ZL and EN-GH.

Send Your MFWN Cutter Code Browse Milling Cutters

Cost per Cutting Edge

Why Use a Double-Sided 6-Edge WNMU Insert?

The trigon design provides three cutting corners on each side. Indexing both sides gives six usable edges when the insert and cutter pocket remain in suitable condition.

Six Usable EdgesThree cutting corners on each side.

Double-Sided SeatingEconomical use of both insert faces.

Lower Cost per EdgeMore indexed edges from one insert.

Stable Pocket SupportDesigned for compatible MFWN cutter seating.

Fewer Insert ChangesMultiple edges before replacing the insert.

Efficient 90° MillingShouldering and facing in suitable cutter systems.

123 456

90 degree shoulder milling application with WNMU insert

Milling Applications

WNMU Insert Applications

Actual capability, cutting depth and feed depend on the complete MFWN cutter body, insert geometry, grade, machine rigidity and workpiece setup.

90° Shoulder Milling

For steps, shoulders and side-wall features in compatible right-angle cutter bodies.

Shoulder milling tools

Face Milling

For flat-surface machining with compatible MFWN face milling cutter bodies.

Face milling tools

Side Milling

For side-cutting and contour operations after verifying cutter clearance and pocket orientation.

High-Efficiency Metal Removal

Uses six cutting edges and suitable cutter pitch to support productive general milling.

Selection Checklist

How to Choose a WNMU Insert

Confirm the Cutter BodyRecord the complete MFWN or FMWN cutter model, pocket and screw.

Select the WNMU SizeChoose 040304, 060408 or 080608 only as specified by the cutter.

Check Every DimensionConfirm IC, T, D, BS and RE against the existing insert or drawing.

Keep the Full GeometrySpecify EN, EN-ZL or EN-GH exactly when requesting a replacement.

Select an Available GradeUse only a grade listed for the exact WNMU model.

State Material and OperationInclude steel, stainless steel, cast iron or difficult-material details and the milling method.

Send Quantity and Tool-Life DataProvide the required quantity, packaging and current wear or fracture problem.

Request Pricing

Request WNMU Insert Pricing and MFWN Compatibility Review

Provide the complete insert and cutter information so the correct size, geometry, carbide grade and cutter fit can be checked.

Complete WNMU designation MFWN or FMWN cutter-body model and pocket photo IC, thickness, hole diameter, land width and corner radius Workpiece material, shoulder/face milling operation and stability Required quantity, packaging and current tool-life problem

WNMU Insert

WNMU Carbide Milling Inserts