3mm Gun Drill Slot Cutter HSS-Co8 TiCN Coating, Long Version DIN 327/DIN 844 - TECWERK

Benefit from the combination of a TiCN‑coated HSS‑Co8 substrate and a secure Weldon shank for consistent small‑diameter slotting and long tool life; order the tool directly via Metav Werkzeuge or ask our consultants if needed.

Slot drill DIN 844 Type N — 3 mm, HSS‑Co8, TiCN, 3‑flute, Weldon shank (TECWERK)

The Slot drill DIN 844 Type N, 3 mm, HSS‑Co8 with TiCN coating is a long, three‑flute, centre‑cutting tool designed for precise slotting and milling operations in steels and stainless steels.

• TiCN coating for extended tool life
• HSS‑Co8 substrate for high toughness
• Weldon shank with drive flat for secure clamping
• Centre‑cutting 3‑flute design for slotting and drilling

Precision performance for small‑diameter machining

The long, three‑flute design offers stable cutting conditions when producing narrow slots or performing plunge operations in small diameters. The tool’s 3 mm nominal diameter and centre‑cutting geometry enable reliable entry into the workpiece without the need for pre‑drilling in many applications. This results in fewer process steps and reduced cycle times, while the combination of flute geometry and substrate supports consistent chip evacuation for cleaner slots and better surface finish. The DIN standard specification ensures repeatable manufacturing quality across batches.

Coating and substrate: extended life and higher material capability

A TiCN surface treatment on the HSS‑Co8 substrate increases wear resistance and supports higher cutting stresses than an uncoated high‑speed steel tool. The coating raises the usable tensile strength range: the tool is rated for work up to approximately 800 N/mm² with an uncoated geometry and up to 1000 N/mm² when coated, making it suitable for many alloyed and stainless steels. For workshops aiming to reduce tool changes and downtime, the coated construction provides a measurable improvement in life span and process stability, especially in interrupted cuts or mixed‑material batches.

Secure clamping and broad application range

The Weldon shank with drive flat allows positive clamping in set screws and toolholders, reducing the risk of slippage under moderate axial forces. With a 6 mm shank diameter and an overall length of 52 mm, the design balances reach and rigidity for long‑reach slotting in compact set‑ups. The tool is right‑hand cutting, designed to machine a broad range of materials: very good suitability for steel, stainless steel (INOX) and cast materials, and conditional suitability for non‑ferrous metals and special alloys. This mix of mechanical properties and shank form delivers dependable repeatability on conventional milling machines and CNCs.

Choose the TECWERK TiCN‑coated slot drill for demanding small‑diameter slotting — contact Metav Werkzeuge for tailored advice and fast supply from Emmerich: info@metav-werkzeuge.com · +49 2822 7131930

Technical data

• Article number: 2000866244NW
• Manufacturer: TECWERK
• Product type: Slot drill (DIN 844 Type N)

Facts

• Diameter: 3 mm
• Overall length: 52 mm
• Cutting length: 3 mm
• Effective length: 8 mm
• Shank diameter: 6 mm
• Flutes: 3

Special features

• Material: HSS‑Co (HSS‑Co8)
• Coating: TiCN
• Shank type: Weldon shank with drive flat
• Cutting direction: right‑hand cutting
• Centre‑cutting geometry
• Suited for steels and INOX (very good)
• Suited for cast materials (very good)
• Conditionally suited for non‑ferrous metals and special alloys
• Rated for ~800 N/mm² uncoated, ~1000 N/mm² coated

FAQ

Which materials can be machined with this slot drill?
The slot drill (TECWERK, SKU 2000866244NW) is very well suited for steel, stainless steel (INOX) and cast materials; non‑ferrous metals and certain special alloys are conditionally suitable.

Is the tool suitable for plunge cutting and slotting?
Yes. The centre‑cutting 3‑flute geometry permits plunge entry and reliable slotting without pre‑drilling in many cases.

What clamping system is required for secure use?
A toolholder or collet that accepts a 6 mm Weldon shank with drive flat is recommended to prevent slippage under axial load.

How does the TiCN coating improve performance?
The TiCN coating increases wear resistance and allows machining of higher tensile strength materials (approx. 1000 N/mm² when coated), extending tool life compared with uncoated HSS.

What are the key dimensions to consider before ordering?
Nominal diameter 3 mm, overall length 52 mm, cutting length 3 mm, effective length 8 mm, and shank 6 mm are the critical dimensions for fixture and toolholder compatibility.

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