Magnum 3/8 Inch 4 Flute Cobalt End Mill Precision Profiling Mill (EM38C)

Combating work-hardening and excessive heat generation, this 4-flute cobalt end mill is designed for demanding applications in stainless steel and high-tensile alloys. The M42-grade cobalt content significantly improves the tool’s ability to withstand thermal stress. With four cutting edges, it provides the high-frequency contact necessary for smooth finishes in tough and abrasive materials.

Features

• Cobalt Alloy - Superior heat resistance for machining tough and abrasive materials.
• High Rigidity - Four-flute core design minimizes tool deflection during side milling.
• Precision Ground Flutes - Reduces friction and improves chip flow in difficult-to-cut metals.

Specifications

• Diameter: 3/8" (9.53 mm)
• Flutes: 4
• Shank: 3/8" (9.53 mm)
• Material: Cobalt
• Supplier Part Number: 723-3035
• KMS Product Code: MAG-EM38C

Common Shop Applications

• Profiling stainless steel components.
• Precision finishing in high-tensile alloys.
• Peripheral milling in abrasive materials.

Recommended Shop Add-Ons

• Our Tool & Die experts suggest: High-Heat Cutting Fluid - Formulated for the intense heat of cobalt milling.
• You'll also need: ER32 Collet Set - Provides the concentric grip needed for high-precision alloy work.

Frequently Asked Questions

Q: Why use Cobalt instead of HSS? A: Cobalt can be run at higher speeds and withstands the heat of cutting stainless much better than standard HSS.

Q: Is this tool center-cutting? A: Yes, it features center-cutting geometry for plunging and profiling.