EDMN Inserts

Q: Which grade is recommended for EDMN inserts in stainless steel?

For stainless steel parting, the MA1825 grade is highly recommended. It features an ultra-fine grain substrate and high heat resistance, preventing built-up edge and ensuring stable cutting in long-chipping materials.

Q: What is the difference between -C and -J chip breakers for EDMN?

The -C and -J chip breakers are both optimized for standard parting operations. They provide excellent chip control and surface finish, with slight variations in rake angle and chip pocket design to suit different feed rates and material groups.

The ultimate solution for standard parting and grooving operations. EDMN inserts feature robust -C and -J chip breakers paired with advanced PA4425 and MA1825 grades, ensuring stable chip evacuation, high precision, and extended tool life in steel and stainless steel.

Standard Parting Grooving Operations C & J Chip Breakers Steel & Stainless Steel High Precision

View Specifications Request Bulk Pricing

Procurement & Commercial Terms

MOQ	10 pcs (Sample/Stock) \| 100 pcs (OEM/Bulk)
Lead Time	Same day dispatch (standard stock) \| 15–20 days (custom/OEM)
Inventory	EDMN200 to EDMN500 (-C / -J) full range in stock. Ready to ship.
Material & Coating	Substrate: Tough Carbide Matrix \| Coating: Medium-Temp CVD, Nano PVD
Packaging	Individual plastic boxes (10 pcs) \| Rigid export cartons
Shipping	DHL/FedEx/UPS for samples \| Air/Sea freight for bulk. Incoterms: EXW, FOB, CIF, DDP

EDMN Dimensions & Available Chip Breakers

Standard parting and grooving geometry. Optimized for stable chip evacuation and high precision. Select your insert and inquire for pricing.

Model	Width (mm)	Height (mm)	Thickness (mm)	Available Chip Breakers	Action
EDMN200	2.0	20.0	2.0	C J	Inquire
EDMN300	3.0	20.0	3.0	C J	Inquire
EDMN400	4.0	20.0	4.0	C J	Inquire
EDMN500	5.0	20.0	5.0	C J	Inquire

Machining Strategy: EDMN provides excellent cost-efficiency for standard parting. For profile grooving operations, consider our ECMN Series.

Chip Breaker Selection Guide for EDMN

Optimized geometries for standard parting and grooving across ISO material groups.

-C / -J Standard Parting

Optimized for standard parting and grooving operations. The -C and -J chip breakers ensure stable chip evacuation, high precision, and excellent surface finish in steel and stainless steel.

Why Choose Amony EDMN for Standard Parting?

Solving critical pain points for B2B manufacturers requiring cost-effective, stable, and high-precision parting solutions.

High Precision Parting

EDMN inserts are ground to tight tolerances, ensuring accurate part lengths and excellent surface finish during parting operations.

Result: Reduced scrap rates and lower quality control costs.

Versatile Material Coverage

From steel finishing (PA4415) to stainless steel parting (MA1825), EDMN offers a complete range of grades to handle almost any parting application.

Result: Simplified tool inventory and faster setup times.

Advanced BUE Inhibition

Machining sticky stainless steel causes built-up edge. Our MA1825 grade combined with optimized chip breakers drastically reduces friction and adhesion.

Result: Consistent surface finish and extended tool life in ISO M materials.

Factory Direct & OEM Support

As an ISO 9001 certified manufacturer, we provide direct pricing, stable lead times, and OEM support (laser marking, private packaging).

Result: Optimized supply chain costs and dedicated technical partnership.

Standard Parting & Grooving Applications

Where Amony EDMN inserts deliver unbeatable performance and cost-efficiency.

General Steel Parting (ISO P)

Standard parting of carbon and alloy steels. The PA4425 grade ensures excellent wear resistance and stable cutting.

Recommended: EDMN300-C / PA4425

Benefit: First choice for general parting of steel, ensuring excellent cost-efficiency.

Stainless Steel Parting (ISO M)

Parting of ISO M materials requires tough substrates to prevent work hardening and built-up edge (BUE).

Recommended: EDMN300-J / MA1825

Benefit: Prevents BUE and ensures stable cutting in long-chipping stainless alloys.

High-Speed Parting

High-volume parting operations requiring fast cycle times. The PA1025 grade balances hardness and toughness for high-speed cutting.

Recommended: EDMN400-C / PA1025

Benefit: Maximizes productivity and extends tool life in high-speed parting.

Grooving Operations

Standard grooving operations on shafts and bores. EDMN's robust geometry ensures stable chip breaking and excellent surface finish.

Recommended: EDMN200-J / PA4415

Benefit: Excellent wear resistance for precise grooving in steel components.

Recommended Cutting Parameters (ap & f)

Optimize your feeds and depths based on the chosen grade. All data strictly verified from factory testing.

Grade	Operation	Depth of Cut (ap mm)	Feed Rate (f mm/rev)	Target Material
PA4415	Steel Finishing	0.50 - 5.00	0.05 - 0.20	Steel (P)
PA4425	Steel General	0.50 - 8.00	0.10 - 0.30	Steel (P)
PA1025	High-Speed Parting	0.50 - 6.00	0.08 - 0.25	Steel / Cast Iron (P/K)
MA1825	Stainless Parting	0.50 - 5.00	0.05 - 0.20	Stainless Steel (M)

Best Practices for Parting & Grooving

Center Height Alignment

For parting inserts like EDMN, setting the tool exactly on the center height is mandatory. Deviations cause poor surface finish and accelerated wear.

Coolant Application

Use high-pressure coolant directly at the cutting edge to flush chips and reduce cutting heat, especially in stainless steel parting.

Minimize Overhang

Keep the tool holder overhang as short as possible. Use the largest diameter bar to maximize rigidity and prevent chatter during parting.

Consistent Feed Rates

Avoid stopping the feed during engagement. Stainless steel work-hardens instantly if the tool dwells, destroying the insert edge.

Frequently Asked Questions

EDMN inserts feature a robust geometry designed for standard parting and grooving operations. The -C and -J chip breakers ensure stable chip evacuation and high precision, making them ideal for steel and stainless steel parting.

For stainless steel parting, the MA1825 grade is highly recommended. It features an ultra-fine grain substrate and high heat resistance, preventing built-up edge and ensuring stable cutting in long-chipping materials.

The -C and -J chip breakers are both optimized for standard parting operations. They provide excellent chip control and surface finish, with slight variations in rake angle and chip pocket design to suit different feed rates and material groups.

Request Quote for EDMN Inserts

Specify your diameter range, material, and monthly volume. We respond with pricing, stock status within 24 hours.

ISO 9001 Certified Factory

Export Packaging Standard

Technical Support Available

Technical Resources

Explore related tools and machining guides to improve efficiency and tool life

What is the difference between a thread form and a cut tap?

Learn the key differences between thread forming taps and cut taps. Discover how each tap works, their best applications, and how to choose the right ···

2023-04-08 1701 views

How 2-Flute and 4-Flute Ball Nose End Mills Affect Surface Finish in Aluminum Machining

Learn how 2-flute and 4-flute ball nose end mills affect surface finish in aluminum machining. Compare performance, finish quality, and ideal applicat···

2025-07-28 1169 views

HSS vs Carbide End Mills: Pros and Cons for CNC Machining

Straight-talk breakdown of HSS vs carbide end mills. No fluff — just real pros, real cons, and when each one actually makes sense for your shop floor.

2025-07-12 1101 views

Ready to Improve Your Machining Performance?

Contact our experts today for a free quote or technical consultation.

Get a Free Quote