APKT Carbide Milling Inserts
Compare APKT1135, APKT1604 and APKT1705 carbide milling inserts by complete model, dimensions, corner radius and available carbide grade. The range also includes D01 APKT1604 geometries for aluminum and other non-ferrous materials.
APKT Insert Models by Size and Application
Use the four sections below to compare standard APKT sizes, larger-radius APKT1705 models and the dedicated APKT1604 aluminum range without creating separate competing pages.
Compact General Milling
One standard model with an 11.30 mm length and 0.80 mm corner radius.
Main General-Purpose Size
The highest-priority size for APKT1604, APKT 16 and specification searches.
Expanded Radius Range
Five complete models with RE values from 0.80 to 4.00 mm.
Aluminum Geometries
PDFR-MA and MA3 models with 0.20, 0.40 and 0.80 mm radii.
What Is an APKT Milling Insert?
APKT is a positive parallelogram-shaped indexable milling insert family used in compatible shoulder, face, side, slot and pocket milling cutter systems.
The four-letter family code identifies the basic shape, relief angle, tolerance class and hole/chip-form configuration. The following size numbers, corner-radius digits and suffixes identify the complete product. Do not order from the word “APKT” alone.
Complete APKT Insert Models, Dimensions and Grades
The following tables compare APKT models, dimensions, corner radii and grade options. Use the complete designation when selecting or ordering an insert.
How to Use the Specification Tables
Start with the exact cutter pocket and existing insert code. Then confirm all five dimensions, the complete suffix, corner radius and the grades shown for that exact model.
APKT1135 General Milling Insert
| Complete Designation | L | W | T | D | RE | Available Grades | Product Direction |
|---|---|---|---|---|---|---|---|
| APKT1135PDER | 11.30 | 6.25 | 3.60 | 2.80 | 0.80 | D570D7320 | Compact general milling platform |
APKT1604 General Milling Insert
| Complete Designation | L | W | T | D | RE | Available Grades | Product Direction |
|---|---|---|---|---|---|---|---|
| APKT1604PDER | 17.42 | 9.33 | 5.20 | 4.50 | 0.80 | D570D7320 | Main general-purpose APKT size |
APKT1705-EM Inserts by Corner Radius
Use the complete designation because the radius changes from model to model. The 4.00 mm model also uses the shorter L value shown below.
| Complete Designation | L | W | T | D | RE | Available Grades | Selection Direction |
|---|---|---|---|---|---|---|---|
| APKT170508R-EM | 18.44 | 10.74 | 5.56 | 4.50 | 0.80 | D530D570D580D7320 | Smallest radius in the 1705 range |
| APKT170516R-EM | 18.44 | 10.74 | 5.56 | 4.50 | 1.60 | D530D570D580 | 1.60 mm corner radius |
| APKT170524R-EM | 18.44 | 10.74 | 5.56 | 4.50 | 2.40 | D530D570D580 | 2.40 mm corner radius |
| APKT170530R-EM | 18.44 | 10.74 | 5.56 | 4.50 | 3.00 | D530D570D580 | 3.00 mm corner radius |
| APKT170540R-EM | 16.84 | 10.74 | 5.56 | 4.50 | 4.00 | D530D570D580 | Largest listed corner radius |
APKT1604 Inserts for Aluminum
Four APKT1604 PDFR-MA / MA3 models are available in D01 grade. These models form a dedicated commercial section for aluminum and other non-ferrous applications.
| Complete Designation | L | W | T | D | RE | Available Grade | Materialausrichtung |
|---|---|---|---|---|---|---|---|
| APKT160402PDFR-MA | 17.25 | 9.25 | 4.76 | 4.40 | 0.20 | D01 | Aluminum and non-ferrous materials |
| APKT160404PDFR-MA | 17.25 | 9.25 | 4.76 | 4.40 | 0.40 | D01 | Aluminum and non-ferrous materials |
| APKT160408PDFR-MA | 17.25 | 9.25 | 4.76 | 4.40 | 0.80 | D01 | Aluminum and non-ferrous materials |
| APKT1604PDFR-MA3 | 17.25 | 9.25 | 4.76 | 4.40 | 0.80 | D01 | Aluminum and non-ferrous materials |
APKT Carbide Grades by Workpiece Material
Use these grade descriptions as a selection direction only, then confirm that the grade is listed for the exact APKT model in the specification tables above.
Steel and cast iron direction, including applications where edge toughness is important.
General steel and stainless-steel direction, including stable and finishing-oriented work.
Steel and cast-iron direction for selected stable machining conditions.
General-purpose direction across steel, stainless steel and cast iron.
Grade for the listed aluminum and non-ferrous APKT1604 models.
APKT Milling Insert Applications
Actual capability depends on the complete cutter-body design, lead angle, pocket geometry and machine setup. Confirm the cutter before assigning an operation.
Schulterfräsen
For compatible cutter systems machining steps, side walls and shoulder features.
Shoulder milling toolsPlanfräsen
For cutter bodies designed to generate flat surfaces with APKT inserts.
Face milling toolsSide & Slot Milling
For compatible side-cutting and slotting systems after pocket and clearance verification.
Slot milling toolsRamping & Pocketing
Only when the complete cutter body is designed for axial entry, ramping or helical interpolation.
Browse milling cuttersMatch APKT Inserts to Your Cutter Body
The available cutter-body data does not support a verified model-by-model APKT compatibility table. Use the process below rather than assigning APKT inserts to an unverified TAP, BAP, RAP or APE cutter.
Record the Complete Code
Send the full APKT designation, including all radius digits and suffixes.
Send Cutter Information
Provide the complete cutter-body model, pocket photo, screw information or an existing insert sample.
Verify Fit and Application
Confirm L, W, T, D, RE, pocket seating, material, operation and required quantity.
How to Choose an APKT Insert
APKT and APMT Inserts Are Not Automatically Interchangeable
The two families can share similar nominal size codes, but the tolerance class, exact dimensions, hole, edge preparation and cutter-pocket seating may differ.
K-Class Insert Family
- Confirm the complete APKT designation.
- Use the model-specific dimensions and grade availability on this page.
- Do not substitute only because the size code looks similar.
M-Class Insert Family
- Uses its own model, chipbreaker and cutter-body structure.
- APMT1135 and APMT1604 are covered on the dedicated collection page.
- Verify the cutter pocket before any replacement.
Looking for APKT1003 or Another Unlisted Size?
APKT1003 is not included in the current product range shown on this page. Send the complete code, drawing or product photo for a sourcing and compatibility review instead of using an unsupported specification.
Request APKT Insert Pricing and Compatibility Review
Provide the complete model and machining information so the correct insert size, radius, grade and cutter fit can be reviewed.
