8mm Slot Drill DIN 844 Type N HSS-Co8 TiCN Weldon 3-Flute Long Centre Cutting, Zylindershaft - TECWERK

Take advantage of the combination of high-temperature cobalt steel and a hard TiCN coating for extended tool life, plus the secure clamping provided by a Weldon shank for uninterrupted production. Order the cutter through Metav Werkzeuge or consult our specialists for application advice and fast supply from Emmerich.

Bohrnutenfräser DIN 844 Type N, HSS‑Co8, TiCN, Ø8 mm, Weldon shank, Z3 by TECWERK

The Bohrnutenfräser DIN 844 Type N is a long, three‑flute slot milling cutter designed for precise slotting and pocketing in medium‑strength materials, featuring a centre‑cutting geometry and a Weldon shank for secure fixture.

• HSS‑Co8 for high wear resistance
• TiCN coating for extended tool life
• Weldon shank with drive flat
• Centre‑cutting, 3‑flute geometry

Faster, cleaner slot milling in medium‑strength metals

The long three‑flute geometry and centre‑cutting capability enable plunge cuts and smooth slotting operations with reduced vibration. Manufactured from HSS‑Co8, the cutter is engineered for elevated temperatures and abrasive loads; the TiCN coating further improves wear resistance and reduces built‑up edge, which helps maintain dimensional accuracy during runs. For materials with tensile strengths up to 800 N/mm² when used uncoated, or up to 1000 N/mm² with appropriate coating, the tool delivers consistent performance, reducing the need for frequent tool changes and increasing machine uptime.

Secure clamping and reliable power transmission

A Weldon shank with a drive flat provides positive torque transfer and minimises slippage in set screws or hydraulic chucks. The standard 10 mm shank diameter ensures compatibility with common collet and chuck systems, while the right‑hand cutting direction supports conventional milling strategies. The three‑edge geometry balances cutting forces for improved chip evacuation and a steady spindle load, making the cutter suitable for both single‑pass slotting and light finishing operations where stability and surface quality matter.

Manufactured to industry standards with practical tolerances

Produced to DIN 844 Type N, the cutter conforms to proven industrial norms for slot drills, ensuring interchangeability and predictable behaviour in production environments. A free cutting length of 7.5 mm and precise flute geometry deliver repeatable chip formation and reduce heat concentration at the cutting edge. Material suitability is prioritised for steel, inox and cast iron, with conditional performance on some non‑ferrous and special alloy workpieces; this allows straightforward selection for workshop and light industrial tasks without over‑engineering the tooling choice.

Application focus and efficiency gains

Ideal for milling slots, keyways and small pockets in components where repeatability and tool life are critical, the cutter reduces setup complexity and downtime. The combination of a cobalt‑alloy substrate and a hard coating means longer tool life under higher cutting speeds than standard high‑speed steels, while the centre‑cutting design allows direct entry into the workpiece where required. Overall, efficiency is increased through fewer tool changes and steadier cycle times, benefiting batch production and maintenance‑sensitive operations.

For reliable, production‑ready milling with TECWERK slot cutters, contact Metav Werkzeuge for tailored advice and prompt delivery from Emmerich: info@metav-werkzeuge.com | +49 2822 7131930

Technical Data

• Article number: 2000866252NW
• Item description: Bohrnutenfräser DIN 844 Type N D.8mm HSS‑Co8 TiCN Weldon Z.3 long TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Shank Ø: 10 mm
• Free cutting length: 7.5 mm
• Number of flutes: 3
• Material strength rating: up to 800 N/mm² uncoated; 1000 N/mm² coated

Special features

• Material: HSS‑Co8
• Coating: TiCN
• Centre‑cutting geometry
• Weldon shank with drive flat
• Right‑hand cutting direction
• Standard: DIN 844 Type N
• Good for steel, inox and cast iron; conditional for NE‑metals and special alloys

FAQ

Is this cutter suitable for plunging directly into the workpiece?
Yes. The centre‑cutting geometry of the Bohrnutenfräser DIN 844 Type N permits plunge cutting; the three‑flute design aids chip control during direct entry.

Which materials are best machined with this cutter?
The cutter is optimised for steel, inox and cast iron; it performs conditionally on some non‑ferrous metals and special alloys when machining parameters are adapted.

Does the Weldon shank require a special holder?
No special holder is required; a Weldon‑style flat accepts standard set‑screw chucks and many hydraulic chucks, ensuring secure clamping for the listed shank diameter.

What advantage does the TiCN coating provide?
The TiCN coating increases surface hardness and reduces friction, which extends tool life and improves resistance to built‑up edge in demanding cutting conditions.

Can this cutter be used at high cutting speeds?
Yes. The HSS‑Co8 substrate combined with the TiCN coating enables higher thermal stability than conventional HSS, allowing elevated cutting speeds within the recommended material limits.

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