Maykestag Speedcut 4.0 Ultra Hard Steel 50-65 HRC DUALDUR HPC End Mill 20mm Long Series 4 Flute

Maykestag Speedcut 4.0 Ultra Hard Steel 50-65 HRC DUALDUR HPC End Mill 20mm

Professional 20mm Speedcut 4.0 Ultra Hard Steel HPC end mill manufactured from solid carbide (VHM), featuring Maykestag's DUALDUR multi-layer coating, four-flute geometry, 50° VARIO spiral angle, Type H design and DIN 6527 L long-series construction for high-performance machining of hardened and high-tensile steels.

The Maykestag Code 8787 Speedcut 4.0 is a high-performance solid-carbide end mill developed especially for machining hardened and high-tensile steels. This Ultra Hard Steel version is specified for the demanding 50-65 HRC machining range and combines high tool rigidity with different spiral angles to support stable cutting and a high-quality machined surface, even under demanding cutting conditions. Maykestag specifies the cutter for roughing, rough-finishing and finishing operations, allowing multiple machining stages to be carried out with the same tool.

What do HPC+, HRC and the red ring mean? HPC stands for High Productive Cutting, Maykestag's designation for high-performance cutting tools designed for demanding material-removal applications. The HPC+ pictogram identifies HPC technology with increased tool life. HRC refers to the Rockwell C hardness scale used to express the hardness of hardened steels. The red colour ring is part of Maykestag's material-identification system and identifies tools intended for high-tensile and hardened steels. Although Maykestag's general red-ring classification extends to hardened steels up to 68 HRC, Code 8787 is specifically designated as the Ultra Hard Steel 50-65 HRC series and this product-specific working range should therefore be followed. Product highlights

• Speedcut 4.0 HPC technology: High Productive Cutting geometry developed for demanding high-performance milling applications.
• Ultra Hard Steel 50-65 HRC: Specifically developed for machining hardened and high-tensile steels in this demanding hardness range.
• Solid carbide construction: Manufactured from VHM solid carbide to provide the high rigidity and wear resistance required for hard machining.
• DUALDUR coating: Multi-layer coating optimised for cutting hard materials, with extremely high temperature resistance for demanding machining conditions.
• Four-flute geometry: Four cutting edges provide a productive cutting configuration for roughing, rough-finishing and finishing operations.
• 50° VARIO spiral angle: Different spiral angles are used to promote stable cutting behaviour and a high-quality machined surface.
• Type H geometry: Tool geometry intended for difficult-to-machine and higher-strength materials.
• Long-series design: DIN 6527 L configuration provides the longer geometry specified for the Code 8787 series.
• 45° corner chamfer: This 20mm cutter has a precise 0.10mm corner chamfer at 45°.
• DIN 6535-HA shank: Precision cylindrical shank manufactured to the specified Maykestag shank standard.
• HPC+ identification: Maykestag's HPC+ pictogram denotes High Productive Cutting with increased tool life.
• STC compatible: The STC pictogram identifies Speed Trochoidal Cutting within Maykestag's machining system.
• Red colour ring: Provides quick visual identification of the cutter as part of Maykestag's hardened and high-tensile steel application group.

Why Choose Maykestag?

Maykestag is an Austrian cutting-tool manufacturer specialising in precision tools for professional machining applications. Its solid-carbide milling programme combines carefully developed cutting geometry, controlled dimensional tolerances, specialised coatings and material-specific application data to help users select the correct cutter for demanding production environments.

The Code 8787 Speedcut 4.0 series is purpose-developed for hard machining. Its combination of solid-carbide construction, four cutting edges, 50° VARIO geometry, Type H design and DUALDUR coating is engineered around the demanding requirements of hardened and high-tensile steels. Maykestag specifically highlights the high rigidity of the cutter, very good surface quality and its ability to perform roughing, rough-finishing and finishing operations with the same tool.

Designed for High-Performance Hard Milling

Hard machining places particularly high thermal and mechanical loads on a milling cutter. The Code 8787 addresses these demands through a rigid solid-carbide body, specialised cutting geometry and DUALDUR coating. The coating uses a multi-layer construction optimised for hard-material machining and high-temperature resistance, while the different spiral angles help promote stable cutting behaviour and a high-quality workpiece surface. Used with the correct cutting speed, feed rate, engagement and machine setup, the Speedcut 4.0 Ultra Hard Steel cutter is designed to provide productive and repeatable machining of hardened steels in its specified application range.