12mm Solid Carbide HSS-Co End Mill, 4 Flutes ALCRONA Coating, DIN 844 HR Short, Weldon Shank - TECWERK

Take advantage of a robust combination of HSS-Co PM metallurgy and ALCRONA surface treatment to extend tool life and maintain consistent performance; the Weldon shank and conical flute design ensure secure clamping and increased rigidity for stable, precise milling. Order directly via Metav Werkzeuge or consult the team for application-specific advice.

End mill DIN 844 Type HR Ø12 mm — HSS-Co PM, ALCRONA coating (TECWERK, 4 flutes, Weldon shank)

The End mill DIN 844 Type HR is a short, four-flute HSS-Co milling cutter designed for high-demand operations in steel and stainless steel machining, offering centre cutting and a Weldon-style shank for secure fixture.

• HSS-Co PM for increased toughness
• ALCRONA coating for enhanced wear resistance
• Weldon shank for secure clamping
• For steel and stainless up to ~1400 N/mm²

Precision and rigidity for demanding milling tasks

The End mill DIN 844 Type HR brings together HSS-Co PM construction and a conical flute root to deliver enhanced rigidity where it matters most. The powder-metallurgy high-speed steel (HSS-Co PM) provides improved toughness and resistance to thermal cracking compared with conventional high-speed steels, which results in longer tool life under interrupted or heavy cuts. The conical flute bottom increases stiffness of the cutting edge, reducing chatter and maintaining dimensional accuracy during slotting and peripheral milling. For production environments where consistent surface finish and tight tolerances are required, this geometry reduces rework and machine downtime.

Clear material suitability and machining advantages

Designed per DIN 844 as a Type HR short cutter, the tool is optimised for operations on steel and stainless steel, with suitability for cast iron also rated as very good. Non-ferrous metals and special alloys are conditionally suitable, allowing flexible use across workshops that handle mixed batches. The tool’s cutting geometry—4 flutes with a centre cut—permits limited plunge cutting and improved chip control in shallow slotting, while the right-hand cutting direction aligns with standard spindle rotation. These characteristics translate into fewer tool changes and a more efficient workflow for small-batch and repair jobs.

Coating and edge technology explained for reliable throughput

The ALCRONA coating forms a hard, low-friction layer that reduces built-up edge and improves wear resistance during continuous machining. In combination with HSS-Co PM substrate, the coating supports higher cutting temperatures and preserves the micro-geometry of the cutting edges. The short cutting length and protective 45° chamfer at the margin help prevent premature chipping during entry, making the tool particularly suited to interrupted cuts and shoulder milling. The result is a stable process window and predictable tool life—key factors when planning production runs or maintenance cycles.

Shank design, clamping and handling for shop-floor security

A cylindrical shank with drive flat (Weldon) ensures positive, slip-resistant clamping in standard toolholders, reducing the risk of axial movement under load. With an Ø12 mm shank diameter matching the cutting diameter and an overall length of 83 mm (effective length 36 mm), the short configuration lowers overhang and maximises stiffness in end milling operations. The modest cutting length and relatively compact geometry make the cutter well suited for milling thin walls, pockets and finishing passes, while the enhanced shank contact contributes to repeatable positional accuracy across serial production.

For reliable, high-performance milling choose the TECWERK HSS-Co PM end mill with ALCRONA coating and contact Metav Werkzeuge for tailored machining recommendations and supply from Emmerich — info@metav-werkzeuge.com · +49 2822 7131930

Technical data

• Article number: 2000866061NW
• Label: Schaftfräser DIN 844 Typ HR D.12mm HSS-Co PM ALCRONA Weldon Z.4 kurz TECWERK
• Manufacturer: TECWERK

Facts

• Diameter: 12 mm
• Overall length: 83 mm
• Effective length: 36 mm
• Cutting length: 4 mm
• Shank diameter: 12 mm
• Number of cutting edges: 4
• Free relief (freischliff): 11.5 mm
• Cutting direction: right-hand

Special features

• Material: HSS-Co PM
• Coating: ALCRONA
• Standard: DIN 844, Type HR
• Geometry: 4-flute, centre cutting, short version
• Shank: cylindrical with drive flat (Weldon)
• Edge protection: 45° protective chamfer
• Application suitability: steel very good, stainless steel very good, cast iron very good, non-ferrous metals conditionally suitable, special alloys conditionally suitable
• Improved rigidity through conical flute root

FAQ

Is this cutter suitable for stainless steel machining?
Yes. The TECWERK End mill DIN 844 Type HR is rated as very good for stainless steel and combines HSS-Co PM with ALCRONA coating to withstand the higher temperatures and work-hardening tendency of inox materials.

Can the tool perform plunge cuts?
The short, centre-cutting geometry allows limited plunge cutting, but the cutter is primarily designed for slotting and peripheral milling with improved axial engagement thanks to the centre cut.

What clamping system is recommended for secure operation?
Use a collet or holder that supports a Weldon-style drive flat; the cylindrical shank with drive flat on this cutter ensures secure clamping and minimises slippage under load.

Which materials should be avoided or approached with caution?
Non-ferrous metals and certain special alloys are listed as conditionally suitable; for extensive machining of softer or exotic materials, trial cuts are recommended to validate performance for the specific alloy.

Does the ALCRONA coating require special feeds or speeds?
The ALCRONA coating improves wear resistance and reduces built-up edge, allowing stable machining at typical HSS feed and speed ranges; adjust parameters to suit machine rigidity and material strength up to ~1400 N/mm².

Manufacturer/Responsible: NORDWEST Handel AG, Robert-Schuman-Straße 17, 44263 Dortmund