18mm Slot Drill DIN 844 Type N HSS-Co8 Long 3-Flute With Centre Cut, Weldon Shank - TECWERK

Take advantage of the combination of robust HSS‑Co8 material, a secure Weldon shank, and a long three‑flute geometry to machine deep axial grooves reliably; order or request advice from Metav Werkzeuge for fast, dependable supply and configuration assistance.

TECWERK Slot Milling Cutter DIN 844 Type N, Ø 18 mm — HSS‑Co8, Weldon Shank

The TECWERK Slot Milling Cutter DIN 844 Type N, Ø 18 mm is a long, three‑flute groove cutter designed for machining axial slots and grooves in medium‑strength steels and cast components.

• HSS‑Co8 high‑cobalt tool steel
• Weldon shank with drive flat
• Three‑flute long design for deep grooves

Improved throughput through material and design

The combination of HSS‑Co8 (high‑cobalt high‑speed steel) and a three‑flute geometry provides a balance of toughness and wear resistance that favours continuous production. The alloyed high‑speed steel increases red hardness and reduces flank wear under elevated temperatures; as a result, cycle times are more predictable and tool changes fewer. The DIN 844 Type N specification indicates a standardised form for slot cutters, which simplifies process planning and replacement sourcing. This gearing of material and form enables efficient metal removal in interrupted cuts while maintaining dimensional stability.

Secure clamping and cutting performance

A Weldon shank with a drive flat and a shank Ø 16 mm ensures positive holding in standard toolholders and collets, reducing slip and vibration during heavy grooving operations. The cutter is centre‑cutting, so axial plunging into the workpiece is possible, allowing flexible toolpaths without additional pre‑drilling. The long version provides extended reach for deep grooves while the three‑flute layout promotes reliable chip evacuation and balanced cutting forces. These features together reduce spindle load peaks and increase process reliability on vertical and horizontal milling machines alike.

Application range and material suitability

This cutter is optimised for machining materials up to roughly 800 N/mm² with an uncoated tool and can reach about 1000 N/mm² when used with a suitable coating. The tool is described as very good for steel and very good for cast iron, with conditional suitability for stainless steel (INOX) and non‑ferrous alloys. For users consolidating tooling across mixed workshops, the robust geometry and material make this cutter a practical choice where steels and cast components are predominant. Where exotic alloys or extreme hardnesses are required, tool selection should reflect the specific alloying and heat‑treatment conditions.

Contact Metav Werkzeuge for tailored procurement advice or to confirm the exact tool configuration for production requirements — Metav Werkzeuge can advise on delivery from Emmerich and immediate availability via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000866240NW
• Label: Slot Milling Cutter DIN 844 Type N, Ø 18 mm, HSS‑Co8, Weldon, Z3, long
• Manufacturer: TECWERK

Dimensions & numbers

• Shank Ø: 16 mm
• Flutes: 3
• Centre‑cutting: yes
• Standard: DIN 844 Type N

Materials & features

• Material: HSS‑Co8
• Shank type: Weldon with drive flat
• Cutting direction: right‑hand
• Long version for deep grooves
• Material suitability: steel very good; cast iron very good; INOX limited; non‑ferrous alloys limited
• Strength guidance: up to ≈800 N/mm² uncoated; up to ≈1000 N/mm² with coating

FAQ

What applications is this slot milling cutter best suited for?
The TECWERK slot milling cutter DIN 844 Type N is intended for axial groove and slot machining in medium‑strength steels and cast components, where a long reach and reliable chip evacuation are needed.

Can the cutter be used for plunge cutting?
Yes, the cutter is centre‑cutting, so axial plunging and entry without pre‑drilling are feasible, subject to machine rigidity and recommended feeds.

What holding system is recommended for this tool?
Use a secure collet or Weldon‑style holder compatible with a shank Ø 16 mm and a drive flat to prevent slippage under higher cutting forces.

How does the HSS‑Co8 material affect tool life?
HSS‑Co8 offers improved red hardness and wear resistance compared with standard HSS, which extends performance in elevated‑temperature cutting and intermittent engagement typical of slotting.

Is this cutter suitable for stainless steel and aluminium?
The cutter is conditionally suitable for stainless steel (INOX) and non‑ferrous materials; machining parameters and potential coatings should be selected according to the specific alloy to optimise results.

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