150mm Countersink DIN 373 HSS 3-Flute 180° For Steel And Cast Iron - TECWERK

Benefit from the combination of HSS construction, a 180° countersink angle and three cutting edges for burr‑free, chatter‑resistant seating of fasteners; order through Metav Werkzeuge or request advice from our consultants.

Flat countersink DIN 373 M6 — HSS flat countersink, 180° | TECWERK

A Flat countersink DIN 373 M6 engineered for precise, burr‑free countersinking of cylinder head screws, hex bolts and nuts in steel, cast iron and non‑ferrous metals.

• HSS construction, three cutting edges
• 180° countersink angle for precise seating
• Cylindrical shank with fixed pilot pin

Accurate seats for secure screw fastening

The HSS material and the tool’s three cutting edges produce a consistent, clean seat that reduces the need for secondary deburring. The 180° countersink angle is matched to common fastener geometries, ensuring that cylinder head screws, hex bolts and nuts sit square and load is distributed evenly. For production environments this means fewer rework cycles and a more predictable assembly process.

Stable machining and process compatibility

Equipped with a cylindrical shank and a fixed pilot pin, the cutter centres reliably in through holes and maintains concentricity during operation. The tool is suitable for steel, cast iron and non‑ferrous and light metals, delivering burr‑free and chatter‑free countersinking when used at lower cutting speeds. The specified feed in steel up to 500 N of 0.2 mm/rev provides a practical reference for integration into turning, drilling or CNC countersinking routines.

Practical durability and handling guidance

A medium quality grade for through holes balances tool life and economy for general workshop and industrial use. Best results are achieved with conservative spindle speeds and steady feed to avoid overheating and premature wear; this approach preserves edge geometry and maintains the burr‑free finish that characterises the tool. The combination of HSS material and three cutting edges supports reproducible results across batches and materials, making the cutter a reliable choice for mixed‑material operations.

Discuss TECWERK countersink options with Metav Werkzeuge — reference SKU 2000865341NW when requesting a technical consultation or placing an order

Technical data

• Article number: 2000865341NW
• Material: HSS
• Standard: DIN 373
• Manufacturer: TECWERK
• Packaging unit: 1

Data

• Countersink angle: 180°
• Cutting edges: 3
• Feed in steel ≤500 N: 0.2 mm/rev
• Grade: medium for through holes

Special features

• Cylindrical shank with fixed pilot pin
• For countersinking cylinder head screws, hex bolts and nuts
• Suitable for steel, cast iron, non‑ferrous and light metals
• Best results at low cutting speed
• Burr‑free and chatter‑free countersinking

FAQ

What materials can this countersink be used on?
The TECWERK Flat countersink DIN 373 M6 is suitable for steel, cast iron and non‑ferrous and light metals, delivering burr‑free results when used at appropriate speeds.

What is the recommended feed for steel applications?
For steel up to 500 N the recommended feed for the TECWERK countersink is 0.2 mm/rev, which supports stable cutting and a clean finish.

Which fasteners is the tool designed for?
The cutter is intended for producing seats for cylinder head screws, hex bolts and nuts; the 180° angle ensures correct seating and load distribution.

How many cutting edges does the tool have and why does that matter?
The tool has three cutting edges, which contribute to smoother cutting action, reduced vibration and a better surface finish compared with two‑edged designs.

What performance grade is the countersink and for which hole type is it optimised?
This is a medium quality grade tool optimised for through holes, providing a balance between cost and durability for general workshop use.

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