20mm Slot Drill DIN 844 Type W Short HSS-Co8 3-Flute Centre Cutting 40° Helix, 19mm Relief - TECWERK

Take advantage of a robust combination of HSS‑Co8 construction and a secure Weldon shank, delivering reliable slotting performance for long‑chipping aluminium and other non‑ferrous metals; order directly via Metav Werkzeuge or consult our specialists for application guidance.

TECWERK Short Slot Milling Cutter DIN 844, Ø20 mm, HSS‑Co8, Weldon, 3‑flute

TECWERK Short Slot Milling Cutter DIN 844, Ø20 mm, HSS‑Co8, Weldon, 3‑flute is a short, three‑flute slotting tool designed for machining long‑chipping aluminium and other non‑ferrous materials with centre‑cut capability for plunge operations

• HSS‑Co8 for high red hardness and wear resistance
• Ø20 mm Weldon shank with drive flat for secure clamping
• Three‑flute geometry with 40° helix for smooth chip evacuation
• Short design increases rigidity for precise groove milling

Efficient cutting where long chips are a challenge

Constructed from HSS‑Co8 (high‑speed steel with 8% cobalt), this slotting tool maintains hardness at elevated temperatures, which means more consistent performance during prolonged cutting of aluminium and similar alloys. The three‑flute geometry balances material removal rate and chip control, while the 40° helix angle encourages gentle chip formation and ejection. These characteristics result in steadier feeds and reduced risk of built‑up edge when working with soft, long‑chipping materials, supporting uninterrupted production and fewer tool changes.

Secure clamping and plunge capability for shop reliability

The Weldon shank with drive flat and a nominal Ø20 mm shaft diameter provide positive torque transmission and reduce slippage in the toolholder, enhancing process stability during heavier cuts. A dedicated centre‑cut (plunge‑capable) design permits short plunges and entry into narrow slots without pre‑drilling, saving setup time. Conformance to DIN 844, Type W ensures compatibility with tooling systems and makes integration into existing machining processes straightforward, which helps maintain predictable results across batches.

Practical application guidance and handling benefits

Designed for right‑hand cutting of long‑chipping aluminium and non‑ferrous metals, the short version of this cutter increases stiffness at the cutting zone, reducing vibration and improving surface finish in narrow grooves. The free grind length of 19 mm concentrates cutting action where it is needed, delivering cleaner slots and easier chip control. For best results, pair the tool with rigid clamping and moderate axial engagement; the tool’s geometry is optimised to keep chips clear and minimise rework, making it a dependable choice for precision workshop and small‑batch production work.

For tailored recommendations and rapid supply, contact Metav Werkzeuge in Emmerich for application support and fast delivery of TECWERK cutting tools.

Technical Data

• Article number: 2000866292NW
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Diameter: Ø20 mm
• Number of flutes: 3
• Helix angle: 40°
• Free grind length: 19 mm

Special features

• Material: HSS‑Co8
• Standard: DIN 844, Type W
• Shank: Weldon shank with drive flat
• Cutting direction: right‑hand cutting
• Centre‑cut for plunge operations
• Application: long‑chipping aluminium and non‑ferrous metals

FAQ

What materials is this slot milling cutter suitable for?
The TECWERK short slot milling cutter is specified for long‑chipping aluminium and other non‑ferrous metals, using its HSS‑Co8 composition and flute geometry to control chips effectively.

Does the cutter allow plunge cutting into a workpiece?
Yes, the tool features a centre‑cut design that permits limited plunge operations without prior drilling, useful for producing slots and grooves efficiently.

How does the Weldon shank benefit machining stability?
The Ø20 mm Weldon shank with drive flat provides positive torque transmission and secure clamping in the toolholder, reducing slippage and improving repeatability during slotting.

Is this tool compatible with standard DIN tooling setups?
The cutter conforms to DIN 844 Type W, ensuring compatibility with typical toolholders and making it straightforward to integrate into established machining processes.

What performance advantages does the 40° helix provide?
A 40° helix angle produces smoother chip formation and improved evacuation in long‑chipping materials, reducing the risk of built‑up edge and promoting a better surface finish.

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