25mm Countersink 90° HSS-Co 3-Flute Cylindrical Shank, 0.2mm/rev Steel Feed - TECWERK

Take advantage of the combination of DIN 335 C geometry, a 90° chamfer angle and a HSS‑Co substrate for consistent countersinking results; the 3‑flute design ensures chatter‑free cutting and smooth deburring. Order the tool directly via Metav Werkzeuge or request technical advice from their consultants.

Kegelsenker DIN 335 C, 90° D25 mm, HSS‑Co – 3‑flute countersink (TECWERK)

A Kegelsenker DIN 335 C 90° D25 mm HSS‑Co 3‑flute countersink designed for precise chamfering and deburring of drilled holes in steel, castings and non‑ferrous metals

• DIN 335 C standard geometry
• 90° chamfer angle for precise seating
• 3‑flute design for chatter‑free cutting
• HSS‑Co for stainless and heat‑resistant steels

Precision chamfers with reduced rework

The tool follows the DIN 335 C standard and delivers uniform 90° chamfers across a wide range of materials. The 25 mm cutting diameter and balanced geometry produce a consistent contact surface for fastener seating and aesthetic finishes, reducing the need for secondary correction. Thanks to the 3‑flute layout, the cutter maintains stable cutting forces and significantly lowers vibration, resulting in a chatter‑free chip flow and improved edge quality.

Material performance and when to choose HSS‑Co

Manufactured in HSS‑Co, the countersink combines high toughness with enhanced heat resistance compared with plain HSS. This makes the tool suitable not only for mild and alloyed steels and castings, but also for stainless and heat‑resistant steels where higher temperatures and abrasion demand a more durable grade. The designation of both HSS and HSS‑Co in the technical data clarifies applicability: select the cobalt‑alloy variant when working with tougher, heat‑sensitive alloys to extend tool life and maintain surface finish.

Workshop efficiency and application guidance

With a cylindrical shank for standard holders and a recommended feed of 0.2 mm/rev in steel under 500 N cutting force, the countersink is optimised for routine workshop use. It is intended for countersinking and deburring drilled holes in steel, castings and non‑ferrous metals; the three cutting edges provide a steady cut and minimise the typical rattling encountered with two‑flute designs. The combination of standard compliance, robust material and stable geometry supports repeatable results across batches and reduces downtime for rework.

For demanding countersinking tasks choose the TECWERK HSS‑Co variant and contact Metav Werkzeuge in Emmerich for tailored advice and reliable supply via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000865014NW
• Product name: Kegelsenker DIN 335C 90Grad D.25mm HSS-Co Z.3 TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1
• UID: 2000865014NW

Data

• Diameter: 25 mm
• Countersink angle: 90°
• Flutes: 3
• Standard: DIN 335 C
• Material: HSS‑Co
• Shank: cylindrical shank
• Feed in steel ≤ 500 N: 0.2 mm/rev

Special features

• For countersinking and deburring of holes in steel, castings and non‑ferrous metals
• Three cutting edges for chatter‑free cutting
• HSS version for general steels and non‑ferrous metals; HSS‑Co for stainless and heat‑resistant steels
• Designed for use in standard holders

FAQ

Which materials can this countersink be used on?
The TECWERK countersink (Kegelsenker DIN 335 C D25 mm) is suitable for steel, castings and non‑ferrous metals; the HSS‑Co grade extends suitability to stainless and heat‑resistant steels.

Is the 3‑flute design better than a 2‑flute countersink?
The three cutting edges of this countersink reduce vibration and produce a more stable, chatter‑free cut compared with typical two‑flute variants, improving surface finish and repeatability.

What shank type does the tool have?
This countersink features a cylindrical shank, compatible with standard tool holders used in general workshop and production environments.

What feed should be used for steel?
For steel under a cutting force of 500 N, follow the recommended feed of 0.2 mm/rev to balance cutting load and tool life for the TECWERK countersink.

Does the tool comply with industry standards?
Yes, the geometry follows DIN 335 C, ensuring predictable chamfer angles and interchangeability with fixtures designed to that standard.

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