6.3mm Countersink 90° HSS-Co TiAlN Coated Three-Unequal Convex Flutes Spiral Shank Right-Handed, DIN 335 C - TECWERK

Benefit from precise, burr‑free countersinking and extended tool life thanks to the combination of HSS‑Co substrate and TiAlN coating; the spiral‑fluted 3‑edge geometry reduces feed and radial forces for smoother, more consistent results. Order directly via Metav Werkzeuge or consult the team for application advice.

TECWERK Countersink DIN 335C, 90° – 6.3 mm, HSS‑Co, TiAlN, 3 Convex Flutes

TECWERK Countersink DIN 335C, 90° is a right‑hand, spiral‑fluted countersink designed for precision chamfering and deburring across a wide range of metals and plastics

• HSS‑Co substrate for high wear resistance
• TiAlN coating for longer tool life
• 90° precision countersink angle
• Spiral‑fluted with three convex cutting edges

Consistent, burr‑free countersinking across materials

The combination of a HSS‑Co cutting substrate with a TiAlN surface finish delivers a balance of toughness and heat resistance that benefits both intermittent and sustained machining. This design enables clean, chatter‑free chamfers in steels, stainless and heat‑resistant steels, aluminium, brass and many plastics. As a result, the tool produces a neat, round and accurate countersink with fewer secondary operations, improving process reliability on the shop floor.

Geometry engineered for lower forces and smoother cutting

A 90° cone angle in Form C (DIN 335 C) together with three convex cutting edges and spiral flutes optimises chip formation and evacuation. The uneven flute geometry reduces harmonic vibration and achieves up to 60% lower feed force and up to 50% lower radial force compared with conventional designs, which helps to protect fragile workpiece surfaces and to maintain positional accuracy during countersinking. The recommended feed in steel up to 800 N is 0.095 mm/rev, providing a reliable baseline for setup and cycle planning.

Coating and substrate deliver extended tool life

The TiAlN coating increases resistance to thermal softening and reduces adhesion of workpiece material to the cutting edges, while the cobalt‑alloyed high‑speed steel core maintains toughness under load. Together these features produce high tool life and consistent part quality, especially in mixed‑material production where tool change frequency must be minimised. The surface treatment also helps maintain edge geometry over repeated cycles, supporting predictable maintenance intervals.

Practical design for everyday workshop use

A cylindrical shank and right‑hand cutting direction make the tool compatible with standard collets and drill chucks, enabling fast insertion and repeatable clamping. The spiral‑fluted layout supports effective chip evacuation even in deeper holes or interrupted cuts, reducing the likelihood of clogging when working with aluminium or plastics. Designed for use in general machining and finishing operations, the countersink provides a dependable solution where consistent chamfer quality and tool longevity are priorities.

For reliable, high‑performance countersinking from TECWERK, contact Metav Werkzeuge for personalised advice and supply from Emmerich — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 2000865290NW
• SKU: 2000865290NW
• Designation: Kegelsenker DIN 335C 90Grad D.6,3mm HSS‑Co TiAlN Z.3 TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Core specifications

• Diameter: 6.3 mm
• Countersink angle: 90°
• Cutting edges: 3 (unequal, convex)
• Form: DIN 335 C
• Feed in steel (up to 800 N): 0.095 mm/rev
• Shank: cylindrical
• Cutting direction: right‑hand

Special features

• Material: HSS‑Co (cobalt high‑speed steel)
• Coating: TiAlN
• Spiral‑fluted geometry
• Reduces feed force by up to 60%
• Reduces radial force by up to 50%
• Suitable for steel, stainless and heat‑resistant steels, aluminium, brass and plastics
• Produces round, accurate and chatter‑free countersinks

FAQ

Is this countersink suitable for stainless and heat‑resistant steels?
Yes. The TECWERK Countersink DIN 335C, 90° combines an HSS‑Co substrate and TiAlN coating to handle stainless and heat‑resistant steels while maintaining tool life.

What is the recommended feed rate for carbon steel?
A practical reference is the specified feed in steel up to 800 N of 0.095 mm/rev for the TECWERK countersink; adjustments may be required depending on machine rigidity and workpiece clamping.

How does the spiral flute and three‑edge geometry improve performance?
The three convex cutting edges with spiral flutes improve chip control and reduce vibration, resulting in smoother cutting, lower feed and radial forces, and more consistent chamfer quality.

Can the tool be used for aluminium and plastics without clogging?
Yes. The spiral‑fluted layout facilitates chip evacuation in aluminium and many plastics, reducing clogging and supporting continuous operation.

What shank systems are compatible with this countersink?
The countersink is supplied with a cylindrical shank, suitable for standard collets and drill chucks used in routine workshop setups.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com