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WALTER Indexable Square Shoulder End Mill: M4257-040-W40-02-54 (MPN 6903588) - Indexable Square-Shoulder End Mills
WALTERIndexable Square-Shoulder End Mills

WALTER Indexable Square Shoulder End Mill: M4257-040-W40-02-54 (MPN 6903588)

SKU 3G-OTH-218444

Brand
WALTER
Item
Indexable Square Shoulder End Mill: M4257-040-W40-02-54
Category
Indexable Square-Shoulder End Mills
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Technical Specifications

WALTER
Manufacturer Part Number
6903588
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WALTER Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the WALTER M4257-040-W40-02-54 indexable square shoulder end mill used for?

This WALTER indexable square shoulder end mill is designed for precision milling of square shoulders, slots, and profiling in metalworking. It is commonly used in machining centers for steel, stainless steel, and cast iron applications where 90° shoulder accuracy and high material removal rates are required.

What are the specifications of the WALTER M4257-040-W40-02-54 end mill?

The WALTER M4257-040-W40-02-54 (MPN 6903588) is an indexable square shoulder end mill with a 40 mm diameter and W40 shank. It uses two indexable inserts and is designed for stable, high-feed machining. The tool is suitable for roughing and finishing operations in industrial milling.

Where to buy the WALTER M4257-040-W40-02-54 end mill worldwide?

3G Electric supplies the WALTER M4257-040-W40-02-54 indexable square shoulder end mill to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this precision milling tool.

How to select the correct inserts for the WALTER M4257-040-W40-02-54 end mill?

Select inserts based on your workpiece material and operation. For the WALTER M4257-040-W40-02-54, use WALTER-compatible indexable inserts designed for square shoulder milling. Match insert grade to material hardness (e.g., PVD-coated for steel, CVD-coated for cast iron) and choose chip breaker geometry for roughing or finishing.

Used in

Common applications for WALTER
Automotive engine block machining — WALTER WNMG542-MM5 WSM20S turning inserts for cylinder bore finishing
Aerospace aluminum component turning — WALTER CCMT060208-FK6 WKK10S diamond inserts for high-speed finishing
General engineering cutoff operations — WALTER GX24-3E400N04-UA4 WKP33S parting inserts for steel bars
Mold and die steel grooving — WALTER GX16-2E300R6-CF5 WSM33S inserts for deep groove roughing
CNC lathe shallow hole drilling — WALTER A1148-1/16IN cobalt screw-machine drill bits for oil-hole drilling
Heavy equipment shaft turning — WALTER SCMT120408-RM4 square inserts for roughing of alloy steels

WALTER Products

3G Electric supplies WALTER indexable square-shoulder end mills. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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