16.5mm Countersink DIN 335C 90° HSS 3-Flute Cylindrical Shank, For Steel/Cast/Non-Ferrous - TECWERK

Take advantage of a durable, HSS-ground countersink with a 90° chamfer and a three‑flute geometry for rattle‑free cutting; the cylindrical shank ensures secure clamping and steady performance in steel, castings and non‑ferrous metals — order directly via Metav Werkzeuge or ask the consultants for machining recommendations.

TECWERK 90° Countersink Ø16.5 mm (DIN 335 C) – HSS, 3‑flute

The TECWERK 90° Countersink Ø16.5 mm is a DIN 335 C high‑speed steel tool designed for clean chamfering and deburring of drilled holes in steel, castings and non‑ferrous metals.

• HSS ground for lasting cutting performance
• 90° chamfer angle for standard countersinking
• Three‑flute design for rattle‑free cutting
• Cylindrical shank for secure toolholding

Consistent chamfers through robust tool geometry

The Ø16.5 mm countersink delivers repeatable chamfer quality thanks to its DIN 335 C geometry and HSS construction. The three‑flute design reduces vibration and produces a rattle‑free cut, which improves surface finish and reduces secondary deburring. For workshops requiring consistent edge preparation, this tool converts machining time into predictable part quality by combining stable cutting behaviour with a standard 90° angle that matches common fastener and assembly requirements. The result is fewer rejects and a steadier process flow.

Efficiency and suitable machining parameters for production

Engineered for use in steel, castings and non‑ferrous metals, the countersink is specified with a recommended feed in steel up to 500 N of 0.14 mm/rev, enabling efficient material removal without compromising finish. The cylindrical shank provides reliable clamping in conventional chucks and collets, supporting both manual drilling machines and automated spindles. Explaining the figure: a feed of 0.14 mm per revolution balances cutting engagement and tool life, so operators can set feeds confidently for consistent burr removal and chamfer formation.

Practical handling and benefits on the shop floor

Maintenance and handling are straightforward: the HSS material tolerates standard workshop reconditioning practices and returns predictable tool life under correct feeds. The combination of DIN 335 C standard geometry and the three‑edge configuration reduces chatter, which benefits both manual operators and CNC programmes by lowering the need for slow secondary finishing steps. Where chamfer quality is critical, this countersink minimises process variance and supports leaner workflows through fewer manual correction steps.

Contact Metav Werkzeuge for tailored advice on integrating the TECWERK countersink into production; Metav’s specialists can provide application guidance and supply from their European quality hub — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 2000865168NW
• Label: 90° Countersink DIN 335 C Ø16.5 mm HSS, 3‑flute, TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Core data

• Diameter: 16.5 mm
• Chamfer angle: 90°
• Cutting edges: 3
• Recommended feed in steel (up to 500 N): 0.14 mm/rev

Special features

• HSS material
• DIN 335 C standard geometry
• Three‑flute design for rattle‑free cutting
• For chamfering and deburring holes in steel, castings, non‑ferrous metals
• Cylindrical shank for standard toolholding

FAQ

What materials is this countersink suitable for?
The TECWERK 90° countersink is suitable for steel, castings and non‑ferrous metals, as stated in the product specification.

How many cutting edges does the tool have and why does that matter?
The tool has three cutting edges; this design delivers a rattle‑free cut and a smoother finish compared with two‑flute variants.

What does the feed value 0.14 mm/rev mean in practice?
A recommended feed of 0.14 mm per revolution for steel indicates the axial advance per spindle turn that balances cutting efficiency and surface finish for this countersink.

Is the shank compatible with standard chucks and collets?
Yes, the cylindrical shank is intended for secure clamping in common chucks and collet systems used in drilling and machining centres.

Which standard does the geometry follow?
The geometry conforms to DIN 335 C, providing a standardised 90° chamfer angle for consistent assembly and fastener seating.

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