25mm Countersink DIN 335C 90° HSS-Co TiAlN 3-Flute Spiral Shank Right-Hand - TECWERK

The combination of HSS‑Co substrate, TiAlN coating and spiral flute geometry ensures long tool life and exceptionally smooth, burr‑free countersinking — ideal for high‑duty production. Order the TECWERK countersink directly via Metav Werkzeuge or consult our specialists for application-specific recommendations.

TECWERK 90° Countersink DIN 335 C, Ø25 mm — HSS‑Co, TiAlN, 3 spiral flutes

The TECWERK 90° Countersink DIN 335 C is a precision countersink for standard chamfers and deburring, engineered for demanding metalworking and general workshop applications.

• HSS‑Co substrate for extended tool life
• TiAlN coating for heat resistance
• 90° profile for standardised countersinking
• Spiral flutes for smooth, chatter‑free cutting

High‑performance construction for consistent chamfer quality

The countersink combines a HSS‑Co (cobalt‑alloyed high‑speed steel) substrate with a TiAlN surface treatment to deliver both toughness and thermal resistance. This pairing reduces wear under elevated temperatures and supports longer service intervals in continuous production. The tool’s 90° geometry and Ø25 mm diameter conform to DIN 335 C standards, providing repeatable chamfer angles and reliable seating for fasteners. Such construction translates into fewer tool changes and steadier process capability in routine and specialist operations.

Lower forces, faster cycles — measurable process benefits

Spiral flute geometry together with three unequal convex cutting edges decreases cutting disturbances and delivers a noticeably smoother cut. The design achieves up to 60% lower feed force and 50% lower radial force, which reduces spindle and workpiece stress and improves clamping stability. The tool allows a feed in steel of up to 0.160 mm/rev (at 800 N) under recommended conditions, enabling higher throughput while maintaining surface quality. These efficiency gains support tighter cycle times and lower rework rates in series production.

Broad material compatibility for fewer tool changes

The tool is specified for machining carbon steels, stainless and heat‑resistant steels, aluminium, brass and a range of plastics, making it a versatile choice for mixed‑material workflows. The TiAlN coating enhances oxidation resistance during high‑speed operation on harder alloys, while the HSS‑Co core maintains impact resistance when penetrating uneven edges or interrupted cuts. Using a single countersink across multiple materials simplifies tool inventory and speeds up job changeovers on the shop floor.

Chip control and finish quality that reduce secondary work

Spiral flutes actively evacuate chips from the contact zone and the convex cutting geometry discourages burr formation, producing a clean chamfer in one pass. The cylindrical shank and right‑hand cutting direction ensure compatibility with standard holders and collets. Together, these features yield a near‑runout‑free operation that preserves hole integrity and reduces subsequent finishing. For applications that demand repeatable, high‑quality seating surfaces, this design minimises manual deburring and inspection time.

For precision countersinking with outstanding tool life and minimal process disturbance, contact Metav Werkzeuge to request the TECWERK 90° countersink or to discuss application optimisation.

Technical data

• Article number: 2000865296NW
• Designation: Kegelsenker DIN 335C 90° Ø25mm HSS‑Co TiAlN Z.3 TECWERK
• UID: 2000865296NW
• Packaging unit: 1

Performance data

• Diameter: Ø25 mm
• Countersink angle: 90°
• Number of flutes: 3
• Feed in steel up to 800 N: 0.160 mm/rev

Special features

• HSS‑Co substrate
• TiAlN coating
• Three unequal convex cutting edges
• Spiral‑grouoved flutes
• Cylindrical shank
• Right‑hand cutting
• DIN 335 C form
• Suitable for steel, stainless and heat‑resistant steels, aluminium, brass, plastics

FAQ

What materials can this countersink machine?
The TECWERK 90° countersink is specified for steel, stainless and heat‑resistant steels, aluminium, brass and various plastics, offering versatile use across mixed‑material production.

How does the TiAlN coating improve tool performance?
The TiAlN coating on the TECWERK countersink increases heat resistance and reduces abrasion, which extends cutting life particularly in high‑speed or high‑temperature operations.

What makes the spiral flute design beneficial?
Spiral flutes on the countersink promote efficient chip evacuation and a smoother cut, resulting in reduced chatter and a cleaner chamfer that often removes the need for secondary deburring.

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