APMT 1135/APMT 1604 Carbide Milling Inserts for Stainless Steel
APMT1135 and APMT1604 carbide milling inserts provide two common size families for stainless-steel milling. Positive cutting geometry and application-matched grades support shoulder milling, face milling, profiling and slotting while helping distributors offer compatible replacement inserts for different indexable cutter systems.
Consistent Quality
Consistent geometry across repeat orders.
Flexible Orders
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
Standard & Custom
Standard sizes and custom configurations.
◆Product Overview
The APMT 1135 and APMT 1604 carbide milling inserts
are designed for shoulder milling, face milling, contouring, slotting and ramping in
stainless steel. Their positive cutting geometry helps reduce cutting resistance,
while the selected chipbreaker and carbide grade support stable chip evacuation and reliable surface quality.
The series is available in multiple grades, chipbreakers and coating options for
finishing, semi-finishing and general milling. Customers can select APMT 1135 or
APMT 1604 according to cutter-body compatibility, required cutting depth and machining conditions.
Customers building a broader milling-insert range can also compare our
XOMX 180608 square-shoulder milling inserts
for compatible shoulder-milling applications.
◆Quick Procurement Summary
| Insert Series | APMT 1135 / APMT 1604 | Primary Workpiece | Stainless steel |
|---|---|---|---|
| Milling Operations | Shoulder / Face / Profile / Slot / Ramp | Cutting Range | Finishing / Semi-finishing / General milling |
| Grade & Coating | PVD and application-specific options | Standard Packing | Commonly 10 pieces per box |
| Supply Options | Standard or mixed-model orders | Branding Support | Neutral or private-label packaging by confirmation |
Note: Packing quantity, MOQ, grade, coating, chipbreaker and supply status should be confirmed using the complete insert code and order combination.
◆Product Features
◆Designed for Stainless Steel Milling
Stainless steel can generate high cutting temperatures, work hardening and built-up
edge. A suitable APMT geometry reduces unnecessary cutting resistance and helps maintain
controlled chip formation. Grade, coating and chipbreaker selection should be matched to
the stainless-steel grade, cutter diameter, machine rigidity and coolant condition.
For a broader comparison of indexable milling products, customers can browse the
complete carbide insert range
.
◆Models & Selection Reference
| Series | General Positioning | Selection Check |
|---|---|---|
| APMT 1135 | Compact insert for compatible smaller or medium cutter bodies. | Confirm full suffix, grade, chipbreaker and cutter seat. |
| APMT 1604 | Larger insert for compatible cutter bodies and increased cutting capacity. | Confirm full suffix, grade, chipbreaker and cutter seat. |
Model reference only. Confirm the complete insert code and cutter-body compatibility
before placing an order.
◆Milling Applications
◆Product Details
The insert surface, cutting edge and chipbreaker should be selected according to the workpiece material and operation. For general guidance on identifying shapes and model codes, see our carbide insert types guide.
.
◆Suitable Workpiece Materials
as 304, 316, 420 and 430.
coating or chipbreaker.
inserts for other materials.
◆Information Required for Model Matching
1
Include the suffix, grade and chipbreaker.
2
Send the cutter code or a clear label photo.
3
State the stainless-steel grade or material standard.
4
Provide quantity, model mix and packaging needs.
◆Customer Supply Support
Customers can order standard models or combine selected APMT sizes and grades according to the confirmed purchasing plan.
For repeat orders, retaining the approved insert code, packaging format and label information helps reduce model-matching errors.
◆Specifications & Size Chart
The supplied model chart lists APMT 1135 and APMT 1604 in H2, M2 and PM variants. Dimensions below reproduce its labeled values in millimeters: l is the listed length, d the listed width, t the listed thickness and R the corner radius. Use the complete insert and cutter-body drawings for pocket and screw fit.
| Model Shown | Variant | l (mm) | d (mm) | t (mm) | R (mm) |
|---|---|---|---|---|---|
| APMT 1135–H2 | H2 | 11 | 6.35 | 3.5 | 0.8 |
| APMT 1604–H2 | H2 | 16.5 | 9.525 | 4.76 | 0.8 |
| APMT 1135–M2 | M2 | 11 | 6.35 | 3.5 | 0.8 |
| APMT 1604–M2 | M2 | 16.5 | 9.525 | 4.76 | 0.8 |
| APMT 1135–PM | PM | 11 | 6.35 | 3.5 | 0.8 |
| APMT 1604–PM | PM | 16.5 | 9.525 | 4.76 | 0.8 |
◆Model & Dimension Reference
◆Material & Application
| Selection Field | What to Confirm |
|---|---|
| Primary workpiece | Stainless steel (ISO M); provide the exact grade, such as 304, 316, 420 or 430, and its condition/hardness. |
| Milling operation | Shoulder and face milling with a compatible cutter. Profile milling, slotting and ramping depend on cutter-body design and published limits. |
| Carbide grade / coating | Confirm the offered substrate and coating by complete SKU; the size chart does not specify a grade or prove a PVD coating for every variant. |
| Geometry suffix | H2, M2 or PM as labeled; request the manufacturer's chipbreaker drawing and material recommendation. Do not interpret “M2” here as M2 high-speed steel. |
| Cutter fit | Compare pocket size, seating surface, fixing screw, insert hand and allowable axial depth with the cutter maker's documentation. |
◆How to Select the Insert
◆Starting Cutting Data
Use grade- and geometry-specific recommendations for the complete insert and cutter. Determine cutting speed (Vc), feed per tooth (fz), axial depth (ap) and radial width (ae) for the stainless-steel grade, cutter diameter, tooth count, coolant and engagement. The dimension chart does not provide a validated speed or feed range.
◆Related Guide & Ordering
For an overview of indexable insert families, read our Carbide Insert Types Guide. Send the cutter-body and complete insert codes to confirm dimensional fit, stainless-steel grade and availability.
◆Carbide Insert Customization & OEM
Specify the insert around the machining operation, workpiece and holder. We can review standard replacements, application-specific geometry and private-label requirements using your insert designation, drawing or sample. Available grades, coatings, dimensions and order quantities are confirmed for each requested series.
Geometry & Chip Control
Review chipbreaker, rake, cutting-edge preparation, nose radius and corner design for the operation and workpiece. Confirm holder compatibility before approving a modified geometry.
Substrate & Coating
Select an available carbide grade and coating for the workpiece material, cutting conditions and desired balance of wear resistance and edge toughness.
Dimensions & OEM
Review insert size, thickness, locating and clamping features, tolerances, laser marking and private-label packaging against the approved specification.
◆Customization Options
Use the fields below when sending an inquiry. The exact options depend on the insert family and are confirmed in the quotation or approved drawing.
| Specification | Details to Confirm |
|---|---|
| Insert Type | Turning, milling, threading, grooving or drilling insert; send the designation or drawing. |
| Size & Fit | Shape, size, thickness, inscribed circle or edge length, hole or clamping form, and holder model. |
| Cutting Geometry | Chipbreaker, nose or corner radius, edge preparation, cutting direction and application-specific profile. |
| Grade & Coating | Workpiece group and grade, carbide substrate, coating system and wet or dry cutting conditions. |
| Tolerance & Inspection | Critical dimensions, profile requirements, inspection method and any required report. |
| OEM Presentation | Insert or box marking, label content, packaging format and quantity per pack. |
◆How to Request a Custom Insert
Send your insert requirements through our contact form or review our OEM and private-label service.
◆Carbide Insert Quality Control
Insert quality depends on the approved grade, geometry, coating and dimensional specification. We review the requirements at order confirmation and align the inspection scope with the insert series and any customer drawing. Share critical dimensions or documentation needs before production so they can be included in the agreed inspection plan.
01 · Incoming Material
Confirm the specified carbide grade or material documentation against the order requirements.
02 · In-Process Checks
Review dimensions and cutting-edge features during production against the approved specification.
03 · Final Inspection
Check the agreed dimensions, appearance, edge condition, coating identification and marking as applicable.
04 · Packing Review
Verify the item code, quantity, labels and protective packing against the approved order.
◆Inspection & Documentation
Inspection points and acceptance criteria should be agreed for the ordered series. For custom inserts, the approved drawing takes priority over a generic catalogue description.
| Check Area | What to Confirm |
|---|---|
| Dimensions & Fit | Insert size, thickness, corner radius, clamping features and any drawing tolerances. |
| Cutting Geometry | Chipbreaker, edge preparation, usable corners and profile where applicable. |
| Grade & Coating | Approved grade and coating designation; any requested verification method. |
| Appearance & Packing | Visible edge damage, marking, item code, count and packing format. |
| Requested Records | Inspection report, material or coating documentation, sample approval or batch identification when agreed. |
◆Order & Delivery
Share a line-by-line list of insert codes and quantities for a mixed-size quotation. Stock status, minimum quantity, sample requirements and production lead time are confirmed for each grade, coating and configuration.
Send your item list and quality requirements through our contact form for specification, availability and delivery confirmation.
◆Product FAQs
What is the difference between APMT 1135 and APMT 1604?
In the supplied chart, APMT 1135 has l = 11 mm, d = 6.35 mm and t = 3.5 mm; APMT 1604 has l = 16.5 mm, d = 9.525 mm and t = 4.76 mm. The listed H2, M2 and PM versions in both sizes have R = 0.8 mm. Match the full model and seating geometry to the cutter body.
Do H2, M2 and PM identify the carbide grade?
They are variant labels shown in the model chart; the chart does not provide their carbide-grade composition, coating or cutting ranges. Ask for the complete order code and grade documentation. “M2” in this suffix should not be confused with M2 high-speed steel.
Can I use the APMT 1605-XM or APKT models in the same cutter?
The reference image also includes APMT 1605-XM and APKT inserts. They are separate designations; some listed thicknesses or widths differ from APMT 1604. Do not treat them as direct substitutes without matching the pocket, screw, seating surface and cutter manufacturer's approved insert list.
Which stainless steels can these milling inserts machine?
This page is positioned for stainless-steel milling, including applications involving common 304, 316, 420 and 430 grades. Select an insert grade and edge preparation qualified for the exact steel and its condition; suitability and starting cutting data are not established by the APMT size code alone.
Are APMT 1135 and 1604 suitable for slotting or ramping?
That depends on the cutter body, its insert pocket and its specified operation limits. Confirm allowable axial depth, ramp angle, radial engagement and chip clearance from the cutter documentation before using either operation.
How should I set cutting speed and feed?
Obtain a starting Vc and feed per tooth (fz) for the complete carbide grade, geometry, cutter body and stainless-steel grade. Set spindle speed from the cutter diameter and table feed from RPM, tooth count and fz; then validate wear, chip evacuation and surface finish in a trial cut.
◆Ordering & OEM FAQs
What information do you need to check cutter compatibility?
Send the cutter-body model, full insert code, photos of the insert and seating pocket, fixing-screw details and any current supplier drawing. The same nominal APMT size does not prove that every chipbreaker or screw-hole form fits a particular cutter.
Can I order APMT 1135 and APMT 1604 together?
Send a line-by-line list of each full model, grade, coating and quantity. Mixed-model supply, stock, minimum quantity and pack quantity are confirmed for the requested combination; the Overview's ten-piece pack is a reference, not a guarantee for every SKU.
Can I request a sample before a repeat order?
Include the cutter code, stainless-steel grade, operation and current cutting conditions. Confirm sample availability by SKU and compare fit, wear, surface quality and chip behavior under a controlled trial.
Are neutral or private-label packs available?
Provide the desired box label, brand artwork, insert marking, quantity per pack and model list. Packaging options, minimum quantities and dispatch timing are confirmed in the quotation.
◆Guides & Technical References
Use our Carbide Insert Types Guide for insert-family and model-code checks.
For a drawing, complete grade options or a mixed-model quotation, send the insert and cutter-body codes with your stainless-steel grade and order quantities.
Need Sizes, Pricing or Custom Options?
Send us the required tool type, sizes, quantities, workpiece material and any OEM or custom requirements. We will confirm suitable specifications, availability, lead time and quotation details.
Drawings, size lists and reference photos are welcome.
