Home / Milling Inserts / 3PKT Inserts

Three-Edge 90° Square Shoulder Milling System

3PKT Square Shoulder Milling Inserts

Compare 3PKT060304R-M, 3PKT100408R-M, 3PKT150508R-M and 3PKT190608R-M by insert size, cutting-edge length, thickness, wiper flat and corner radius. The supplied cutter data includes 3PKT10 and 3PKT15 shank cutters plus a complete 3PKT15 face-mill range.

View Insert Dimensions View Shank Cutters View 3PKT15 Face Mills Request Pricing

Use the complete insert code and cutter platform. The 3PKT10 bodies match the 3PKT100408 platform, while the 3PKT15 bodies match the 3PKT150508 platform.

3PKT square shoulder milling insert family

3PKT insert family

3PKT dimensional reference

Insert Models060304, 100408, 150508 and 190608

Indexed EdgesThree corners on a single-sided triangular platform

Listed GradesD530, D570 and D580

Shank Platforms3PKT10 and 3PKT15

Face-Mill Platform3PKT15 from Ø50 to Ø250

Primary Use90° shoulder, side, step and pocket milling

Insert Family

Four 3PKT Insert Size Platforms

The four models use different dimensions and cutter pockets. Select the complete insert size from the actual cutter body instead of assuming that all 3PKT inserts are interchangeable.

3PKT060304R-MIC 5.3, APMT 4.7, T 2.8, RE 0.4 mm

3PKT100408R-MIC 6.9, APMT 7.0, T 4.0, RE 0.8 mm

3PKT150508R-MIC 10.7, APMT 11.0, T 5.0, RE 0.8 mm

3PKT190608R-MIC 13.5, APMT 15.0, T 6.0, RE 0.8 mm

The supplied cutter data explicitly covers the 3PKT10 and 3PKT15 platforms. No matching body data for the 06 or 19 platforms is published on this page.

3PKT three-edge indexable square shoulder milling insert

Insert Specifications

3PKT Insert Dimensions and Grade Availability

Keep IC, APMT, thickness, wiper-flat length and corner radius together when comparing a replacement insert.

Dimension Guide

ICInscribed-circle reference APMTEffective cutting-edge length TInsert thickness BSWiper-flat length RECorner radius R-MManufacturer-specific geometry suffix

Do not shorten the ordering code to “3PKT insert.” The complete size and R-M suffix are needed for correct pocket and edge selection.

Complete Model	Platform	IC (mm)	APMT (mm)	T (mm)	BS (mm)	RE (mm)	Listed Grades
3PKT060304R-M	3PKT06	5.3	4.7	2.8	1.0	0.4	D530D570D580
3PKT100408R-M	3PKT10	6.9	7.0	4.0	1.2	0.8	D530D570D580
3PKT150508R-M	3PKT15	10.7	11.0	5.0	1.8	0.8	D530D570D580
3PKT190608R-M	3PKT19	13.5	15.0	6.0	2.0	0.8	D530D570D580

Carbide Grade Direction

D530, D570 and D580 for 3PKT Inserts

D530

Toughness-oriented direction for common steel, castings and interrupted milling where edge security is the priority.

D570

Balanced direction for steel and stainless-steel milling in continuous or moderately interrupted conditions.

D580

Wear-resistance direction for stable milling, dry cutting and selected mould-steel or cast-iron applications.

Grade selection still depends on the complete insert model, workpiece material, machine rigidity, coolant and observed wear mode.

3PKT10 and 3PKT15 square shoulder shank cutters

3PKT10 & 3PKT15 Shank Cutters

Shank Cutter Models from Ø20 to Ø40

The attachment lists 3PKT10 bodies for the 3PKT100408 platform and 3PKT15 bodies for the 3PKT150508 platform. Available lengths are 150 and 200 mm with two-, three- or four-tooth configurations.

3PKT10 PlatformØ20–35 visible cutter diameters, two to four teeth, M2.5 screw and T8 wrench.

3PKT15 PlatformØ30–40 visible cutter diameters, three teeth, attachment lists M4.5 screw and T20 wrench.

Attachment consistency check: model segments such as C25 or C32 normally appear to identify a shank size, but the attachment’s “shank diameter” column repeats the cutter diameter for rows such as C25-30, C32-35 and C32-40. Confirm the physical shank diameter before publishing inventory or quoting.

Complete Shank Cutter Range

3PKT10 and 3PKT15 Shank Cutter Table

Cutter Model	Platform	Listed Cutter Ø (mm)	Listed Shank Ø (mm)	Overall Length (mm)	Teeth	Matching Insert	Screw / Wrench
3PKT10-C20-20-150L-2T	10	20	20	150	2	3PKT100408R-M	M2.5 / T8
3PKT10-C25-25-150L-3T	10	25	25	150	3	3PKT100408R-M	M2.5 / T8
3PKT10-C25-25-200L-3T	10	25	25	200	3	3PKT100408R-M	M2.5 / T8
3PKT10-C32-32-150L-3T	10	32	32	150	3	3PKT100408R-M	M2.5 / T8
3PKT10-C32-32-200L-3T	10	32	32	200	3	3PKT100408R-M	M2.5 / T8
3PKT10-C32-32-150L-4T	10	32	32	150	4	3PKT100408R-M	M2.5 / T8
3PKT10-C32-32-200L-4T	10	32	32	200	4	3PKT100408R-M	M2.5 / T8
3PKT10-C32-35-150L-4T	10	35	35*	150	4	3PKT100408R-M	M2.5 / T8
3PKT10-C32-35-200L-4T	10	35	35*	200	4	3PKT100408R-M	M2.5 / T8
3PKT15-C25-30-150L-3T	15	30	30*	150	3	3PKT150508R-M	M4.5 / T20
3PKT15-C25-30-200L-3T	15	30	30*	200	3	3PKT150508R-M	M4.5 / T20
3PKT15-C32-32-150L-3T	15	32	32	150	3	3PKT150508R-M	M4.5 / T20
3PKT15-C32-32-200L-3T	15	32	32	200	3	3PKT150508R-M	M4.5 / T20
3PKT15-C32-35-150L-3T	15	35	35*	150	3	3PKT150508R-M	M4.5 / T20
3PKT15-C32-35-200L-3T	15	35	35*	200	3	3PKT150508R-M	M4.5 / T20
3PKT15-C32-40-150L-3T	15	40	40*	150	3	3PKT150508R-M	M4.5 / T20
3PKT15-C32-40-200L-3T	15	40	40*	200	3	3PKT150508R-M	M4.5 / T20

*Values are reproduced from the attachment’s shank-diameter column. Confirm them against the actual tool drawing because the C25/C32 model segment does not agree with several listed column values.

3PKT100408R-M insert for 3PKT10 shank cutters

3PKT10 Platform Match

3PKT100408R-M for 3PKT10 Shank Cutters

The attachment uses the family notation 3PKT100408. The complete insert catalogue designation is 3PKT100408R-M. Verify the full suffix, seat and clamping screw before replacing an insert.

Insert DimensionsIC 6.9, APMT 7.0, T 4.0, BS 1.2 and RE 0.8 mm.

Visible Cutter RangeØ20–35, 150 or 200 mm long, with two to four teeth.

Attachment HardwareM2.5 screw with T8 wrench.

Ordering ControlKeep 3PKT100408R-M and the complete cutter code on the RFQ.

3PKT15 face milling cutter for 3PKT150508 inserts

3PKT15 Face-Mill Range

3PKT15 Face Mills for 3PKT150508R-M

The supplied cutter catalogue lists eight 3PKT15 shell-type bodies from Ø50 to Ø250. The catalogue uses the family notation 3PKT1505, which corresponds to the 3PKT150508 size platform after the full insert geometry is confirmed.

Diameter RangeØ50, 63, 80, 100, 125, 160, 200 and 250 mm.

Bore Range22, 27, 32, 40 and 60 mm.

Tooth CountFour to sixteen teeth depending on cutter diameter.

Catalogued HardwareM4×12 screw and T15 wrench.

Hardware differs by cutter type: the shank-cutter attachment lists M4.5/T20 for 3PKT15 shank bodies, while the face-mill catalogue lists M4×12/T15 for 3PKT15 shell mills. Do not interchange screws or wrenches between the two systems.

Complete Face-Mill Models

3PKT15 Face-Mill Model Table

Face-Mill Model	Cutter Ø (mm)	Bore (mm)	Teeth	Matching Insert	Screw	Wrench
3PKT15-50-22-4T	50	22	4	3PKT150508R-M	M4×12	T15
3PKT15-63-22-5T	63	22	5	3PKT150508R-M	M4×12	T15
3PKT15-80-27-6T	80	27	6	3PKT150508R-M	M4×12	T15
3PKT15-100-32-8T	100	32	8	3PKT150508R-M	M4×12	T15
3PKT15-125-40-10T	125	40	10	3PKT150508R-M	M4×12	T15
3PKT15-160-40-12T	160	40	12	3PKT150508R-M	M4×12	T15
3PKT15-200-60-14T	200	60	14	3PKT150508R-M	M4×12	T15
3PKT15-250-60-16T	250	60	16	3PKT150508R-M	M4×12	T15

Machining Applications

3PKT Square Shoulder Milling Applications

90° Shoulder Milling

Machine floors and vertical walls with a compatible 3PKT cutter body.

Side and Step Milling

Create side faces, steps and shoulders with controlled radial engagement.

Pocket Roughing

Use a shank cutter for open-pocket roughing where tool reach is required.

Slot and Entry Milling

Use only when the exact cutter body supports the required slot, ramp or entry method.

Broad Face Milling

Use the 3PKT15 shell-mill range for larger surfaces from Ø50 to Ø250.

Selection Checklist

How to Select a 3PKT Insert and Cutter

Identify the PlatformConfirm 3PKT06, 10, 15 or 19 from the complete cutter-body code.

Keep the Full Insert CodeSpecify 3PKT100408R-M or 3PKT150508R-M rather than only the size family.

Check DimensionsVerify IC, APMT, thickness, BS and corner radius.

Select the GradeChoose D530, D570 or D580 according to material, interruption and wear.

Separate Hardware SystemsUse the screw and wrench specified for the exact shank or shell-mill body.

Verify Ambiguous Shank DataConfirm the C25/C32 shank diameter from a production drawing before quotation.

Frequently Asked Questions

3PKT Milling Insert FAQ

Are the four 3PKT insert sizes interchangeable?

No. The 06, 10, 15 and 19 platforms use different dimensions and cutter pockets.

Which insert fits the 3PKT10 shank cutters?

The attachment identifies the 3PKT100408 platform. The complete catalogue model used on this page is 3PKT100408R-M.

Which insert fits the 3PKT15 shank cutters and face mills?

Both use the 3PKT1505 size platform. The complete insert model is 3PKT150508R-M after confirming the R-M geometry and actual pocket.

Do the 3PKT15 shank cutters and face mills use the same screw?

No. The attachment lists M4.5/T20 for the shank bodies, while the face-mill catalogue lists M4×12/T15.

Which grades are available for the listed 3PKT inserts?

The supplied insert catalogue lists D530, D570 and D580 for all four models.

Why are some attachment shank diameters marked for confirmation?

Several rows repeat the cutter diameter in the shank-diameter column even though the C25 or C32 segment of the model code suggests a different shank size. Confirm the actual drawing before ordering.

Pricing and Compatibility Review

Request 3PKT Insert and Cutter Pricing

Send the complete insert and cutter codes so the platform, dimensions, grade, body type and hardware can be checked before quotation.

Complete 3PKT insert model and required D530, D570 or D580 grade Complete shank-cutter or face-mill code Required cutter diameter, shank or bore, overall length and teeth count Workpiece material, depth, radial engagement and coolant condition Need for screws, wrench, spare parts or a complete cutter body

3PKT Insert

3PKT Square Shoulder Milling Inserts

Four 3PKT Insert Size Platforms