Maykestag Solid Carbide Corner Radius End Mill 4mm R0.5 Speedcut Universal ALUNIT-S
Professional 4mm Speedcut Universal solid carbide corner radius end mill with a precise 0.5mm corner radius, long-series neck-relieved design, 4 flutes, unequal 35°–38° spiral angles and ALUNIT-S® coating for high-performance milling.
The Maykestag Code 6447 Speedcut Universal is a precision HPC milling cutter engineered for productive machining across a broad range of engineering materials. This 4mm version combines a solid carbide cutting body with a 0.5mm corner radius, a relieved neck and four cutting flutes, creating a strong and stable cutting geometry for accurate profiling, contouring, shoulder milling and general precision milling operations.
Its unequal 35°–38° spiral geometry provides a progressive cutting action, while the long-series neck-relieved construction provides additional clearance behind the cutting section. The cutter is manufactured to DIN 6527 L, features a cylindrical DIN 6535-HA shank and is finished with Maykestag’s ALUNIT-S® coating.
A corner radius end mill combines the versatility of a flat-ended milling cutter with a defined radius between the end cutting edge and the outside diameter. This radius removes the sharp cutting corner found on a conventional square-end cutter, producing a stronger transition at the cutting edge. The 0.5mm radius on this cutter is well suited to applications where a controlled internal radius, increased corner strength and smooth transitions between machined surfaces are required.
Product highlights
- 4mm cutting diameter: Versatile precision cutter for profiling, contouring, shoulder milling and general CNC milling applications.
- 0.5mm corner radius: Produces a controlled radiused transition while strengthening the cutting corner.
- VHM solid carbide: Manufactured from solid carbide for high rigidity, dimensional stability and dependable machining performance.
- Speedcut Universal: Part of Maykestag’s versatile Speedcut Universal range for machining a broad selection of engineering materials.
- HPC geometry: High-performance cutting geometry developed for productive milling under suitable machining conditions.
- 4-flute design: Four cutting edges provide productive material removal and stable milling performance.
- Unequal spiral angles: 35°–38° unequal spiral geometry provides a progressive cutting action.
- Neck-relieved construction: The reduced 3.60mm neck diameter provides clearance behind the cutting section for improved accessibility.
- ALUNIT-S® coating: Maykestag’s specified coating for the Code 6447 Speedcut Universal series.
- DIN 6527 L: Long-series end mill manufactured to the specified DIN dimensional standard.
- DIN 6535-HA shank: Precision cylindrical HA shank for secure holding in suitable toolholding systems.
- Precision radius tolerance: Corner radius manufactured to a specified tolerance of ±0.005mm.
Why Choose Maykestag?
Maykestag cutting tools are developed for professional machining environments where geometry, dimensional accuracy and repeatable performance matter. The Speedcut family combines precisely defined cutter geometries with high-performance tool materials and specialised coatings, helping machinists select the correct cutter for both the machining operation and workpiece material.
The Code 6447 Speedcut Universal series combines solid carbide construction, ALUNIT-S® coating, unequal spiral geometry and a neck-relieved long-series design. This 4mm version features four cutting flutes and a precisely manufactured 0.5mm corner radius, creating a versatile professional milling cutter for profiles, shoulders and contoured features where cutting-edge strength, accessibility and dimensional accuracy are important.
Built for Precise Universal Milling
The combination of the 4mm cutting diameter, 0.5mm corner radius and relieved 3.60mm neck allows this cutter to machine detailed features while maintaining clearance behind the active cutting section. Its four-flute configuration provides multiple cutting edges for productive milling, while the unequal 35°–38° spiral angles support a smooth and progressive cutting action. When used with the correct spindle speed, feed rate, toolholding and machining strategy, the Code 6447 is designed to deliver accurate and repeatable milling performance across its recommended material groups.
