Magnum 1/2 Inch 4 Flute Cobalt End Mill (EM12C)
Equip your milling center for high-speed performance in hardened steels with the Magnum 1/2 Inch 4 Flute Cobalt End Mill. Featuring an M42 cobalt substrate, this tool provides an essential thermal barrier that resists the high frictional heat generated by abrasive materials. The matching 1/2" shank ensures maximum concentricity and vibration control, while the 4-flute center-cut design enables efficient plunging and high-definition wall finishing, making it the professional choice for machining stainless steel and high-tensile alloys.
Features
- M42 Cobalt substrate - significantly improves red-hardness for prolonged life in heat-treated materials.
- 4-Flute center-cut - designed for versatile operation, including vertical plunging and fine finishing.
- 1/2" (12.7 mm) Shank - ensures maximum torque transfer and high precision in standard holders.
Specifications
- Diameter: 1/2" (12.7 mm)
- Shank Size: 1/2" (12.7 mm)
- Material: M42 Cobalt
- Flute Count: 4
- Supplier Part Number: 723-3045
- KMS Product Code: MAG-EM12C
Common Shop Applications
- High-precision finishing in hardened 4140 or stainless steel.
- Milling pockets in high-tensile alloy components.
Recommended Shop Add-Ons
- You'll also need: 1/2 Inch End Mill Holder - provides the rigid mounting required for cobalt milling.
- Most fabrication experts also grab: High-Performance Cutting Oil - essential for cooling the tool in hardened steel.
Frequently Asked Questions
Q: What is the advantage of 4 flutes in cobalt? A: More flutes provide a smoother finish and allow for faster feed rates during finishing passes in tough alloys.
Q: Can I use this for slotting? A: Yes, but 4-flute mills are typically better for side-milling and finishing; use a 2-flute if chip clearance is an issue in deep slots.