20mm Slot Drill DIN 844 Type W HSS-Co8 3-Flute Long Centre Cut 40° Helix Weldon Shank - TECWERK

Benefit from secure clamping and efficient chip evacuation thanks to the Weldon shank and three-flute, 40° helix geometry; the HSS‑Co8 construction further improves toughness for challenging non‑ferrous machining. Order the cutter directly via Metav Werkzeuge or ask the consultants if needed.

TECWERK Slot Milling Cutter DIN 844 – HSS‑Co8, 20 mm, Weldon shank

The TECWERK slot milling cutter is a long, centre‑cutting tool designed for precision slotting and plunge work in long‑chip aluminium and other non‑ferrous metals

• HSS‑Co8 high‑speed steel for thermal stability
• DIN 844, Type W long slot cutter
• Weldon shank with drive flat for secure clamping
• Three flutes, 40° helix for long‑chip evacuation

High‑performance material and standard conformity for reliable results

Constructed from HSS‑Co8, this long slot cutter offers improved hardness and thermal resistance compared with standard high‑speed steels, which translates into extended tool life and consistent cutting geometry under moderate heat. Conformance to DIN 844 ensures the tool form and tolerances match established industrial expectations, simplifying tool selection for shop workflows. The 20 mm diameter combined with centre‑cutting capability enables both slotting and limited plunge operations, reducing tool changes and improving process efficiency for repetitive production tasks.

Faster machining and better surface quality in long‑chip materials

The tool’s three‑flute design and 40° helix angle promote smooth chip flow and reduce the risk of built‑up edge when working with long‑chip aluminium and other non‑ferrous metals, resulting in improved surface finish and fewer interruptions. The geometry supports higher feed rates while maintaining controlled chip breakage, which is particularly advantageous for continuous serial runs or light milling operations. The long style of the cutter is optimised for deeper slots and extended reach, avoiding secondary finishing passes and saving cycle time.

Secure clamping and practical workshop integration

A cylindrical shank with Weldon drive flat provides positive torque transfer and secure retention in solid holders, decreasing the chance of slippage during high‑load passes. Right‑hand cutting and centre‑cutting features allow more flexible use in milling setups and permit cautious plunge entry when necessary. As an industrial tool, this cutter fits conventional toolholders and is straightforward to integrate into existing tool lists; tooling managers benefit from the standardised form factor and the predictable behaviour of the HSS‑Co8 material under common coolant and dry‑run conditions.

For reliable slotting performance with TECWERK high‑speed tools, contact Metav Werkzeuge for ordering or technical advice: info@metav-werkzeuge.com | +49 2822 7131930 – Metav’s consultants will assist with application matching and supply.

Technical data

• Article number: 2000866314NW
• Manufacturer: TECWERK
• Packaging unit: 1
• UID: 2000866314NW

Facts

• Diameter: 20 mm
• Shank diameter: 20 mm
• Number of flutes: 3
• Helix angle: 40°
• Free relief / cutting length: 19 mm
• Material: HSS‑Co8
• Standard: DIN 844

Special features

• Type W, long version
• Centre‑cutting (plunge capable)
• Cylindrical shank with Weldon drive flat
• Right‑hand cutting
• Very well suited to aluminium and non‑ferrous metals
• Designed for long‑chip materials

FAQ

Is this cutter suitable for aluminium and similar alloys?
Yes. The TECWERK slot milling cutter (SKU 2000866314NW) is designed for long‑chip aluminium and non‑ferrous metals, with geometry that supports efficient chip evacuation.

Can this tool be used for plunging operations?
The cutter is centre‑cutting, which permits limited plunge entries; however, plunge depth should be matched to the machine and holder rigidity.

What clamping method is recommended?
Use a secure holder compatible with a Weldon drive flat to ensure positive torque transfer and minimise the risk of slippage.

Is the material suitable for higher cutting speeds?
Constructed from HSS‑Co8, the tool offers improved thermal resistance over standard HSS; suitable cutting speeds depend on workpiece alloy and machine capability.

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