4.3mm Countersink 90° Three-Point HSS, 3-Flute Cylindrical Shank, For Steel/Cast/Non-Ferrous, 0.07mm/rev - TECWERK

Take advantage of a robust combination of HSS construction and a three‑flute design for consistent, rattle‑free chamfering and deburring; the result is reduced rework and steadier cycle times. Order the countersink directly via Metav Werkzeuge or contact the consultants for application advice.

TECWERK countersink DIN 335 C, 90° — 4.3 mm HSS, 3‑flute

The TECWERK countersink DIN 335 C 90° 4.3 mm is a cylindrical‑shank chamfering tool designed for precise deburring and countersinking of drilled holes across steel, cast iron and non‑ferrous metals.

• High‑speed steel (HSS) construction
• Three‑flute design for smooth cut
• 90° chamfer angle for standard countersinking
• Cylindrical shank for conventional toolholders

Precision machining that reduces rework and increases throughput

The tool is made from HSS, conforming to DIN 335 C, which ensures predictable wear behaviour in routine production. The 90° tip geometry produces a standard chamfer profile suitable for most fastener seats and countersinking tasks; this reduces the need for secondary finishing and helps maintain part tolerances. Because the tool offers a defined feed recommendation of 0.07 mm/rev in steel at feeds up to 500 N, process engineers can calculate cutting parameters with confidence and integrate the tool into existing cycle time estimates. The use of a standard cylindrical shank simplifies fixturing and keeps changeovers quick.

Smooth, burr‑free cuts thanks to three cutting edges

The three‑flute configuration creates a rattle‑free cut, lowering vibration and improving surface quality compared with two‑flute countersinks. Fewer vibrations mean less chatter and a reduced risk of burr formation, which translates into fewer manual deburring operations and lower labour costs. The cutting geometry is optimised for a consistent chamfer on materials such as steel, cast iron and non‑ferrous metals, making the tool suitable for both small batches and repetitive production runs where repeatability matters.

Versatile application and clear process benefits

This countersink works reliably across a broad material mix and is particularly useful where quick, standardised chamfers are required before assembly. The combination of HSS and the specified flute geometry offers a balance of toughness and edge retention, making the tool a practical choice for everyday workshop use. For incoming inspection or quality control, the consistent chamfer profile simplifies gauging and reduces scrap rates. The tool’s specification supports rational process planning and straightforward integration into existing tooling sets.

For consistent chamfering choose the TECWERK HSS countersink—contact Metav Werkzeuge for supply from Emmerich and expert application advice via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000865151NW
• Label: Kegelsenker DIN 335C 90Grad D.4,3mm HSS Z.3 TECWERK
• Manufacturer: TECWERK

Facts

• Diameter: 4.3 mm
• Countersink angle: 90°
• Number of cutting edges: 3
• Feed recommendation in steel up to 500 N: 0.07 mm/rev
• Shank: cylindrical

Special features

• Material: HSS
• Standard: DIN 335 C
• Application: countersinking and deburring of drilled holes
• Suitable for: steel, cast iron, non‑ferrous metals
• Cutting behaviour: rattle‑free due to three cutting edges
• Packaging unit: 1

FAQ

What materials can this countersink machine effectively cut?
The TECWERK countersink DIN 335 C 90° 4.3 mm is suitable for steel, cast iron and a range of non‑ferrous metals, offering reliable chamfering across these materials.

How does the three‑flute design affect finish quality?
A three‑flute geometry provides a rattle‑free cut and reduced vibration, so the countersink delivers smoother chamfers and fewer burrs than comparable two‑flute tools.

What feed rate should be used for steel applications?
For steel up to the stated cutting resistance, the recommended feed is approximately 0.07 mm/rev, as noted in the product specification for consistent results.

Is the shank compatible with standard toolholders?
Yes, the cylindrical shank is designed for compatibility with conventional collets and toolholders commonly used in workshops and machining centres.

Does the countersink comply with recognised standards?
The tool is manufactured to DIN 335 C specifications, ensuring conformity with established countersink geometry and quality expectations.

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