8mm Slot Drill DIN 844 Type W HSS-Co8 3-Flute Short Centre Cutting 40° Helix 10mm Shank - TECWERK

Take advantage of a compact, high‑performance cutter that combines HSS‑Co8 wear resistance with a Weldon shank for secure clamping and rapid chip evacuation; the result is reliable slotting in long‑chipping aluminium and other non‑ferrous metals. Order directly via Metav Werkzeuge or consult the technical team for application matching.

TECWERK Slotting cutter DIN 844 Type W — 8 mm, HSS‑Co8, Weldon shank, Z=3 (short)

The TECWERK slotting cutter is a short, three‑flute grooving cutter designed for fast, stable machining of long‑chipping aluminium and non‑ferrous metals in workshop and industrial settings

• HSS‑Co8 high‑wear alloy
• DIN 844 Type W, three‑flute short design
• Weldon shank with drive flat, Ø 10 mm
• 40° helix for long‑chipping aluminium and non‑ferrous metals

High cutting performance for long‑chip materials

Engineered in HSS‑Co8, this short grooving cutter delivers a balance of hardness and toughness that increases edge life when working with softer, long‑chip materials. The 40° helix promotes smooth chip flow and reduces the risk of built‑up edge, while the three flutes maintain a consistent cutting engagement for higher feed rates. These characteristics translate into fewer tool changes and a steadier production flow, making the cutter especially suited to serial tasks where efficiency and surface quality matter.

Secure clamping and greater rigidity for precise slots

The Weldon shank with drive flat and a shank diameter of Ø 10 mm ensures a positive transmission of torque and minimises slippage in standard tool holders. The short overall length increases stiffness at the cutting tip, reducing runout and vibration under load. With a 7.5 mm free grind flute length, the design offers a compact cutting zone that improves dimensional control in slotting operations and supports consistent repeatability across multiple workpieces.

Short design that supports plunge and slotting operations

Built to DIN 844 Type W dimensional standards, this short grooving cutter features a centre‑cut geometry that enables controlled plunging as well as axial slotting. Right‑hand cutting and the compact three‑edge configuration provide balanced cutting forces and a predictable chip pattern. Standardisation under DIN 844 helps with interchangeability in production environments and simplifies tooling lists when replacing or stocking cutters for routine jobs.

Practical recommendations and workshop use

Optimised for aluminium and other non‑ferrous metals, this cutter performs best where long, continuous chips are produced; the combination of high helix angle and centre‑cut flutes reduces chip congestion in narrow slots. The robust shank profile suits common collet chucks and Weldon holders, giving a straightforward upgrade path for existing setups. For specialised applications or material mixes, Metav Werkzeuge’s advisors can assist with tooling strategies and holder compatibility to ensure the cutter meets specific process requirements.

For tailored application advice or to secure a TECWERK slotting cutter for production, contact Metav Werkzeuge — email info@metav-werkzeuge.com or call +49 2822 7131930 to discuss compatibility and availability.

Technical data

• Article number: 2000866280NW
• Item designation: Slotting cutter DIN 844 Type W, D 8 mm, HSS‑Co8, Weldon, Z=3, short
• Packaging unit: 1

Data

• Diameter: 8 mm
• Shank diameter: Ø 10 mm
• Flute free grind length: 7.5 mm
• Helix angle: 40°
• Cutting edges: Z = 3
• Material: HSS‑Co8
• Cutting direction: right‑hand
• Centre cutting: yes

Special features

• DIN 844 Type W compliance
• Three‑cutting‑edge geometry
• Weldon shank with drive flat
• Short design for increased rigidity
• Suited to long‑chipping aluminium and non‑ferrous metals
• Very good suitability for non‑ferrous metals
• Designed for slotting, grooving and plunge operations

FAQ

Which materials is this cutter best suited for?
The TECWERK slotting cutter is optimised for aluminium and other non‑ferrous metals; its HSS‑Co8 composition and 40° helix support efficient machining of long‑chipping materials.

Can the cutter be used for plunge cutting?
Yes. The cutter’s centre‑cut geometry allows controlled plunge operations as well as axial slotting, making it suitable for short, vertical entries.

What holders are compatible with the Weldon shank?
Holders and chucks designed for a Weldon shank with a Ø 10 mm diameter and a drive flat are compatible; standard Weldon clamping systems provide secure mounting and torque transmission.

Is the cutter interchangeable with other DIN 844 Type W tools?
Dimensionally aligned to DIN 844 Type W, the cutter is compatible with tooling systems that rely on that standard, aiding straightforward replacements and stocking.

How many cutting edges does the tool have and what is the benefit?
The tool has three cutting edges (Z=3), which balance chip load and surface finish while enabling higher feed rates compared with two‑flute variants.

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