14mm Slot Drill DIN 844 HSS-Co8 TiCN Long 3-Flute Weldon Shank Right-Hand - TECWERK

Take advantage of the combination of durable HSS‑Co8 construction, low‑friction TiCN coating, and a secure Weldon shank for consistent groove milling in workshop and industrial settings. Order the cutter directly via Metav Werkzeuge or consult the Metav team for tailored machining parameters.

Slot drill DIN 844 Type N, D 14 mm — HSS‑Co8, TiCN, Weldon shank (TECWERK)

The Slot drill DIN 844 Type N is a long, three‑flute slot milling cutter designed for groove and slot machining in steels, stainless steel and cast iron, offering centre cutting capability for reliable entry.

• HSS‑Co8 for wear resistance
• TiCN coating for extended tool life
• Weldon shank with drive flat
• Three cutting edges for efficient chips

High performance where strength matters

The long three‑flute design with centre cutting capability combines stable cutting with the option to plunge into material, providing efficient slot formation on medium‑strength components. The HSS‑Co8 substrate delivers increased hot hardness compared with standard high‑speed steels, while the TiCN coating reduces friction and abrasion, extending tool life. For uncoated cutters the guideline limit is around 800 N/mm², and the coated variant raises that to about 1000 N/mm², enabling confident use on tougher steels without compromising finish.

Secure toolholding and consistent concentricity

A Weldon shank with drive flat ensures positive drive and simple clamping in standard toolholders, reducing the risk of slippage under heavy feeds. The cutter’s 12 mm shank diameter matches common collet and chuck systems, allowing stable torque transmission for slotting and light profile milling. Stable clamping translates directly into better runout control and repeatable results on production runs, which supports predictable process planning and less scrap.

Faster machining through controlled chip evacuation

With three flutes the cutter balances material removal and chip clearance: chip formation is more continuous than a two‑flute tool, while the flute geometry promotes reliable chip evacuation, especially in deeper slots. The specified free cutting length of 11.5 mm suits many groove depths encountered in component machining, while the right‑hand cutting orientation matches standard spindle rotations. The tool’s long variant is especially useful where reach and access to recessed features are required.

Application guidance and material suitability

The cutter is rated very good for steel, stainless steel and cast iron, and conditionally suitable for non‑ferrous metals and special alloys; this means adjusted cutting data and appropriate coolant strategies are recommended for softer or highly ductile materials. The combination of cobalt alloy and TiCN coating broadens usable cutting speeds, but selecting the correct feeds and speeds remains essential to preserve tool life and surface finish. For precision slotting operations, maintain stable fixture conditions and monitor spindle runout to exploit the cutter’s capabilities.

For precise groove milling with this TECWERK slot drill, contact Metav Werkzeuge for a machining recommendation or detailed technical data at info@metav-werkzeuge.com or call +49 2822 7131930.

Technical data

• Article number: 2000866258NW
• Label: Bohrnutenfräser DIN 844 Typ N D.14mm HSS‑Co8 TiCN Weldon Z.3 lang TECWERK
• Brand: TECWERK
• Standard: DIN 844
• Material: HSS‑Co8
• Coating: TiCN
• Packaging unit: 1
• UID: 2000866258NW

Core specifications

• Shaft diameter: 12 mm
• Free cutting length: 11.5 mm
• Flutes: 3
• Recommended tensile strength (uncoated): up to 800 N/mm²
• Recommended tensile strength (coated): up to 1000 N/mm²

Special features

• DIN 844 Type N
• Centre cutting (Zentrumschnitt)
• Weldon shank (cylindrical shank with drive flat)
• Right‑hand cutting
• Long design for extended reach
• TiCN coating for reduced friction
• Very good for steel, stainless steel and cast iron
• Conditionally suitable for non‑ferrous metals and special alloys

FAQ

What materials is this slot drill best suited for?
The TECWERK slot drill is indicated as very good for steel, stainless steel and cast iron; use adjusted speeds and feeds for non‑ferrous metals or special alloys where the cutter is only conditionally suitable.

Does the TiCN coating improve performance significantly?
Yes. The TiCN coating on the TECWERK cutter reduces friction and abrasion, raising the recommended tensile strength limit to about 1000 N/mm² for coated tools versus approximately 800 N/mm² for uncoated variants.

Is the shank compatible with standard toolholders?
The cutter features a Weldon shank with drive flat and a 12 mm diameter, so it is compatible with common collets and Weldon‑style holders when secured correctly.

Can this tool perform plunging operations?
The centre cutting geometry (Zentrumschnitt) allows controlled plunging, making the cutter suitable for entering slots directly as well as conventional side milling.

How many flutes does the cutter have and what is the effect?
The tool has three flutes (Z=3), which offers a balance between removal rate and chip evacuation for improved surface finish in slotting tasks.

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