6.3-20.5mm Countersink Set DIN 335C 90° HSS-Co TiAlN Coated Spiral Flute Right-Handed - TECWERK

Take advantage of the combination of HSS‑Co construction, TiAlN coating and spiralised cutting geometry for quieter, more accurate chamfering with extended tool life; order the TECWERK countersink set directly via Metav Werkzeuge or ask our consultants if needed

TECWERK countersink set DIN 335 C (90°), HSS‑Co, TiAlN, 6.3–20.5 mm

TECWERK countersink set DIN 335 C (90°) designed for precision chamfering and deburring in a wide range of workshop and industrial applications

• HSS‑Co with TiAlN coating
• DIN 335 C, 90° countersink angle
• Spiral flutes for smooth, chatter-free cuts
• Plastic case for organised storage

Lower cutting forces for faster, cleaner chamfers

The combination of HSS‑Co substrate and TiAlN surface treatment reduces friction and heat at the cutting edge, resulting in 60% lower feed force and 50% lower radial force compared with conventional geometries. Spiralised flute geometry and three unequal convex cutters ensure a chatter-free operation and produce round, accurate countersinks rather than faceted or riven finishes. This performance advantage translates into fewer rejects and steadier feeds on drills and milling spindles, supporting higher productivity in serial and single-part operations.

Longer service intervals through robust geometry

Spiral flutes and the cobalt-enriched high-speed material give the set a pronounced resistance to abrasion and thermal softening, yielding long tool life even under demanding conditions. The unequal cutter geometry balances cutting forces and distributes wear, which keeps surface finish consistent across multiple passes. For practical workshop planning, this means less frequent tool changeovers and better utilisation of machine time—factors that improve overall process economy in metalworking environments.

Proven suitability across common engineering materials

Specified to DIN 335 C with a 90° countersink angle, the set is suitable for machining steel, stainless and heat-resistant steels, aluminium, brass and various plastics. The right-hand cutting geometry and TiAlN coating make the tools especially effective where heat resistance and edge stability are needed, for example in stainless-steel assemblies or mixed-material production runs. The result is dependable chamfer quality across materials, reducing the need for separate tools per substrate.

Compact set-up for efficient workshop handling

Sizes from 6.3–20.5 mm are supplied in a plastic case that keeps the inserts organised and reduces downtime during tool changes. The compact cassette supports straightforward storage at the bench or in tool cabinets, and the clear size progression helps to select the correct countersink quickly. Combined with Metav’s procurement options, the set is intended to simplify inventory management and centralise sourcing for workshops seeking reliable cutting tools.

For precise countersinking across mixed materials, request the TECWERK countersink set via Metav Werkzeuge or consult our technical advisors by e‑mail at info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• Article number: 2000865298NW
• Product designation: Countersink set DIN 335 C 90° TECWERK
• Packaging unit: 1

Facts

• Diameter range: 6.3–20.5 mm
• Countersink angle: 90°
• Standard: DIN 335 C
• Pieces: 6

Special features

• Material: HSS‑Co
• Coating: TiAlN
• Cutting edges: 3 unequal convex cutters
• Flute type: Spiralised flutes
• Cutting direction: Right-hand cutting
• Applications: Steel; stainless and heat-resistant steels; aluminium; brass; plastics
• Packaging: Plastic cassette

FAQ

Which materials are suitable for these countersinks?
The TECWERK countersink set (SKU 2000865298NW) is specified for steel, stainless and heat‑resistant steels, aluminium, brass and various plastics.

How does the TiAlN coating affect performance?
TiAlN increases heat resistance and reduces friction at the cutting edge; with the HSS‑Co core it contributes to longer tool life and more consistent chamfer quality.

Are the cutters geometry suitable for chatter-free finishing?
Yes—the spiralised flutes together with three unequal convex cutters are designed to reduce vibration and produce round, rattle‑free countersinks.

What sizes are included in the set?
The set covers a diameter range of 6.3–20.5 mm and conforms to DIN 335 C with a 90° countersink angle.

Is regrinding or reconditioning information available?
Regrinding or reconditioning is not specified in the supplied product data.

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