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Double-Sided 90° Shoulder Milling Inserts

4NKT060308 Carbide Milling Inserts

Compare the 4NKT060308R-M double-sided carbide insert by dimensions and grade options. Match the complete insert code to compatible 4N TE90 shank cutters and face milling cutter bodies for true 90° shoulder milling, facing, slotting, pocketing and ramping.

View Insert Specifications Match 4N TE90 Cutters Request Pricing

4NKT carbide milling inserts in multiple coating options

4NKT carbide milling insert range

4N TE90 shoulder milling system for 4NKT inserts

4N TE90 shank and face milling system

Complete Model4NKT060308R-M

Cutting Edges4 usable edges from a double-sided design

Insert DimensionsL 6.6 × T 4.2 mm

Depth ReferenceAPMT = 5.8 mm

Grade OptionsD530, D570, D580 and D7320

Cutter System4N TE90 shank cutters and face mills

Product Positioning

Four-Edge Insert for True 90° Shoulder Milling

The 4NKT060308R-M platform combines a double-sided insert, positive cutting action and a strong 0.8 mm corner radius for compatible 4N TE90 cutter bodies.

90°

True Shoulder Direction

Designed for square shoulder and side-wall generation with a compatible cutter.

Four Usable Edges

Four indexed cutting positions help reduce the cost per usable edge.

5.8

APMT Reference

The listed insert uses a 5.8 mm maximum-depth reference.

General Geometry

The complete R-M designation is retained for general shoulder-milling direction.

Insert Identification

How to Read 4NKT060308R-M

Use the complete code rather than ordering from “4NKT” alone. The family, size platform, right-hand designation and M geometry must all match the cutter pocket.

4NKTInsert FamilyDouble-sided four-edge shoulder-milling platform

060308Size CodeIdentifies the 06 platform and 0.8 mm radius direction

RRight-Hand CodeRetain the R designation in the complete product code

MM GeometryGeneral-purpose cutting-edge direction

The supplied product range lists 4NKT060308R-M. Other externally searchable geometry suffixes are not presented as available products on this page.

4NKT insert drawing with L APMT T and RE dimensions

4NKT060308R-M Dimension Reference Use the table values below for purchasing and compatibility checks.

Single 4NKT carbide milling insert appearance reference

Single 4NKT Insert Reference Confirm the complete model marking; the specifications on this page are for 4NKT060308R-M.

L6.6 mm

APMT5.8 mm

T4.2 mm

BS0.6 mm

RE0.8 mm

Edges4

Dimensions and Grade Options

4NKT060308R-M Specifications

Use the complete dimensions, grade and cutter-body model together. Similar-looking square inserts may not fit the 4N TE90 pocket.

Complete Designation	L (mm)	APMT (mm)	T (mm)	BS (mm)	RE (mm)	Geometry	Grade Options	Compatible Platform
4NKT060308R-M	6.6	5.8	4.2	0.6	0.8	M	D530D570D580D7320	4N TE90

APMT is shown as the insert's maximum-depth reference. Final shoulder depth and ramping data must also follow the complete cutter body, grade, material and setup.

Carbide Grade Direction

4NKT Grade Options by Workpiece Material

Only four grades are listed for 4NKT060308R-M. Select the grade according to workpiece material, stability, coolant and the observed wear or fracture 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 lighter finishing loads.

D580

Steel and cast-iron direction for selected stable machining and wear-resistance requirements.

D7320

General-purpose direction across steel, stainless steel and cast iron.

4N TE90 shank cutters and face mills for 4NKT060308R-M inserts

4N TE90 cutter bodies for the 4NKT060308R-M platform

Cutter Compatibility

Match 4NKT060308R-M to 4N TE90 Cutters

The supplied 4N TE90 range includes long shank cutters and two face milling cutter bodies. Confirm the complete model, diameter, shank or bore, flute count, body length and clamping parts.

Ø16–17 mm2-flute shank cutters with 15, 15.6 or 16 mm shanks.

Ø19–22 mm3-flute shank cutters with 19 or 20 mm shanks.

Ø25–30 mm4-flute shank cutters with 25 mm shanks.

Ø32–40 mm5- and 6-flute cutters with 32 mm shanks.

The shank range uses 160 or 200 mm total lengths, 35 or 40 mm blade lengths, M2.5 screws and a T8 wrench.

View All Shank Models View Face Mills

Complete Shank-Cutter Range

4N TE90 Shank Cutter Models

Cutter Model	Teeth	Cutter ØD (mm)	Shank Ød (mm)	Total Length (mm)	Blade Length (mm)	Insert
4N TE90 216-15-06-160	2	16	15	160	35	4NKT060308R-M
4N TE90 216-15.6-06-160	2	16	15.6	160	35	4NKT060308R-M
4N TE90 216-16-06-160	2	16	16	160	35	4NKT060308R-M
4N TE90 217-16-06-160	2	17	16	160	35	4NKT060308R-M
4N TE90 319-19-06-160	3	19	19	160	35	4NKT060308R-M
4N TE90 320-19-06-160	3	20	19	160	35	4NKT060308R-M
4N TE90 320-20-06-160	3	20	20	160	35	4NKT060308R-M
4N TE90 321-20-06-160	3	21	20	160	35	4NKT060308R-M
4N TE90 322-20-06-160	3	22	20	160	35	4NKT060308R-M
4N TE90 425-25-06-160	4	25	25	160	35	4NKT060308R-M
4N TE90 426-25-06-160	4	26	25	160	35	4NKT060308R-M
4N TE90 428-25-06-160	4	28	25	160	35	4NKT060308R-M
4N TE90 430-25-06-160	4	30	25	160	35	4NKT060308R-M
4N TE90 532-32-06-160	5	32	32	160	35	4NKT060308R-M
4N TE90 535-32-06-160	5	35	32	160	35	4NKT060308R-M
4N TE90 640-32-06-160	6	40	32	160	35	4NKT060308R-M
4N TE90 216-15-06-200	2	16	15	200	40	4NKT060308R-M
4N TE90 216-15.6-06-200	2	16	15.6	200	40	4NKT060308R-M
4N TE90 216-16-06-200	2	16	16	200	40	4NKT060308R-M
4N TE90 217-16-06-200	2	17	16	200	40	4NKT060308R-M
4N TE90 320-19-06-200	3	20	19	200	40	4NKT060308R-M
4N TE90 320-20-06-200	3	20	20	200	40	4NKT060308R-M
4N TE90 321-20-06-200	3	21	20	200	40	4NKT060308R-M
4N TE90 425-25-06-200	4	25	25	200	40	4NKT060308R-M
4N TE90 426-25-06-200	4	26	25	200	40	4NKT060308R-M
4N TE90 428-25-06-200	4	28	25	200	40	4NKT060308R-M
4N TE90 430-25-06-200	4	30	25	200	40	4NKT060308R-M
4N TE90 532-32-06-200	5	32	32	200	40	4NKT060308R-M
4N TE90 533-32-06-200	5	33	32	200	40	4NKT060308R-M
4N TE90 535-32-06-200	5	35	32	200	40	4NKT060308R-M

Face Milling Cutter Bodies

4N TE90 Face Mill Models

Cutter Model	Teeth	Cutter ØD (mm)	Bore Ød (mm)	Total Length (mm)	Body W (mm)	Body T (mm)	Insert
4N TE90 750-22R-06	7	50	22	50	10.4	6.3	4NKT060308R-M
4N TE90 863-22R-06	8	63	22	50	10.4	6.3	4NKT060308R-M

Both face mills use M2.5 insert screws and a T8 wrench. Confirm the current spare-part code before ordering replacement screws.

Insert Economy

Double-Sided Design with Four Usable Cutting Edges

The 4NKT060308R-M design provides four indexed cutting positions. Correct indexing and stable pocket seating allow each edge to be used before the insert is replaced.

Four Indexed EdgesFour cutting positions from one double-sided insert.

Positive Cutting ActionSupports lower cutting force in a compatible pocket.

Strong Insert Body4.2 mm thickness and 0.8 mm corner radius.

Lower Cost per EdgeMore usable cutting positions from one insert.

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Milling Applications

4NKT060308 and 4N TE90 Applications

Actual cutting depth, ramping angle and slot capability depend on the complete 4N TE90 body, grade, flute count, machine rigidity and workpiece setup.

True 90° Shoulder Milling

For square shoulders, steps and side-wall features with compatible 4N TE90 bodies.

Shoulder milling tools

Face Milling

For flat-surface machining using the listed Ø50 and Ø63 face mills.

Face milling tools

Full Slot Milling

For cutter models and setups where chip evacuation and full-width engagement are controlled.

Slot milling tools

Pocket Milling

For cavity roughing and residual-stock removal with suitable entry strategy.

Straight Ramping

For cutter bodies and programs designed for oblique entry into the workpiece.

Helical Ramping

For compatible cutter models after confirming helix angle, clearance and machine stability.

Selection Checklist

How to Choose a 4NKT060308 Insert

Confirm the Cutter BodyRecord the complete 4N TE90 shank or face mill model.

Confirm 4NKT060308R-MUse the complete insert designation rather than the family name alone.

Check All DimensionsVerify L, APMT, T, BS and RE against the current insert and pocket.

Confirm Clamping PartsCheck the M2.5 screw, T8 wrench and the actual pocket condition.

Select an Available GradeChoose D530, D570, D580 or D7320 according to the operation.

State the Milling OperationInclude shoulder, face, slot, pocket or ramping requirements.

Send Quantity and Tool-Life DataProvide material, cutting data, quantity and the current wear or fracture problem.

Request Pricing

Request 4NKT Insert Pricing and 4N TE90 Compatibility Review

Provide the complete insert and cutter details so the correct carbide grade, body size, clamping parts and pocket fit can be checked.

Complete 4NKT060308R-M designation 4N TE90 shank cutter or face mill model Cutter diameter, shank or bore, tooth count and body length Workpiece material, hardness and milling operation Required quantity, cutting data and current tool-life problem

4NKT Insert

4NKT060308 Carbide Milling Inserts