APPROVED VENDORCorner-Radius Carbide Roughing End Mills for Steel & Cast Iron

APPROVED VENDOR Roughing End Mill: Carbide, AlTiN Coated, 4 Flute, 5/16" Mill Dia

The APPROVED VENDOR Roughing End Mill is a corner-radius carbide end mill for steel and cast iron, featuring an AlTiN coating, 4 flutes, a 5/16" mill diameter, and a 13/16" length of cut (MPN 257-312815).

SKU 3G-OTH-300081

Brand

APPROVED VENDOR

Item

Roughing End Mill: Carbide, AlTiN Coated, 4 Flute, 5/16" Mill Dia

Technical Specifications

APPROVED VENDOR

Manufacturer Part Number

257-312815 

Type

AlTiN Coated 

Mill Dia

5/16" 

Flute

4

LOC

13/16" 

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Technical Documents

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APPROVED VENDOR Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the APPROVED VENDOR 257-312815 roughing end mill used for?

This corner-radius carbide roughing end mill is designed for aggressive material removal in steel and cast iron. Its AlTiN coating and 4-flute geometry suit high-speed machining in industrial manufacturing, mold making, and heavy-equipment fabrication.

What are the specifications of the APPROVED VENDOR 257-312815 end mill?

The 257-312815 is a carbide roughing end mill with AlTiN coating, 4 flutes, 5/16" mill diameter, and 13/16" length of cut. It features a corner-radius design for steel and cast iron. The manufacturer part number is 257-312815.

Where to buy the APPROVED VENDOR 257-312815 end mill worldwide?

3G Electric supplies the APPROVED VENDOR 257-312815 roughing end mill worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time.

How to select the right roughing end mill for steel and cast iron?

For steel and cast iron, choose a carbide end mill with AlTiN coating for heat resistance and wear life. Match flute count to material hardness—4 flutes suit medium-to-hard alloys. Ensure the mill diameter and length of cut fit your machine's spindle and depth requirements.

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APPROVED VENDOR Products

3G Electric supplies APPROVED VENDOR corner-radius carbide roughing end mills for steel & cast iron. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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