12.4mm Countersink 75° HSS 3-Flute Cylindrical Shank Ø8mm, Form C - TECWERK

Benefit from burr‑free finishes and consistent seating with the fine 75° geometry and HSS construction; the 3‑flute cutter combines smooth cutting with controlled feed to reduce rework. Order directly via Metav Werkzeuge or consult the specialists for application advice.

75° countersink, 12.4 mm, HSS — 3‑flute countersink with 8 mm shank (TECWERK)

Kegelsenker 75° D12.4 HSS is a precision 75° countersink designed for burr‑free countersinking, deburring and spot facing in a wide range of metals

• 75° countersink geometry for precise seating
• HSS construction for durability and heat resistance
• 3‑flute design for smooth, burr‑reduced cuts
• 8 mm cylindrical shank for standard chucks

Improve hole quality with consistent, burr‑free finishes

The TECWERK 75° countersink delivers a measurable improvement in hole quality by combining a true 75° seat angle with a 3‑flute cutting geometry. The HSS material ensures thermal and mechanical resistance during interrupted cuts, while the cutter’s geometry reduces radial forces that cause chatter. This leads to clean deburring and reliable screw seating, which in turn reduces assembly rejects and post‑process rework.

Stable cutting geometry for predictable machining cycles

The tool’s Form C geometry and right‑hand cutting action provide secure chip control and stable cutting behaviour. The 8 mm cylindrical shank fits standard collets and chucks, enabling quick integration into both manual and CNC operations. For steel applications the recommended feed is 0.14 mm/rev at cutting forces up to 500 N, which balances surface finish and tool life while favouring lower cutting speeds for best results.

Broad material compatibility to simplify tool selection

Engineered for everyday workshop versatility, the countersink performs well on steel, cast iron and non‑ferrous metals, as well as lighter metals. Its geometry is optimised for debur‑ring, countersinking and spot facing, so one cutter can replace several specialised tools in mixed‑material production. The result is fewer tool changes and a leaner tooling inventory without compromising finish quality.

Practical integration and efficiency in production

With its cylindrical shank and compact 12.4 mm head diameter, the cutter is easy to fit into standard tooling holders and quick‑change systems. The 3‑flute layout reduces vibration and delivers smoother cuts than two‑flute variants, extending the effective life of the cutter and improving cycle time predictability. Installation is straightforward, enabling small and large workshops to benefit from a more efficient countersinking process.

Order the TECWERK 75° countersink via Metav Werkzeuge for reliable delivery from Emmerich and expert guidance on feeding and machine setup

Technical data

• Article number: 2000865134NW
• Designation: 75° countersink, 12.4 mm
• Brand: TECWERK
• Packaging unit: 1

Facts

• Diameter: 12.4 mm
• Shank diameter: 8 mm
• Cutting edges: 3
• Countersink angle: 75°
• Recommended feed in steel: 0.14 mm/rev (up to 500 N)

Special features

• Material: HSS
• Form: C
• Shank type: cylindrical
• Cutting direction: right‑hand cutting
• Application: deburring, countersinking, spot facing
• Best results at low cutting speed

FAQ

What materials can this countersink machine reliably process? The TECWERK 75° countersink (countersink tool, SKU 2000865134NW) is suitable for steel, cast iron and non‑ferrous metals, and is designed for deburring and spot facing across these materials.

What shank connection is required for the tool? A standard 8 mm cylindrical shank holder or chuck is required; the 8 mm shank ensures compatibility with common collets and quick‑change systems for workshop drills and CNC spindles.

How does the 3‑flute design affect surface finish? The 3‑flute geometry on the TECWERK countersink promotes smoother cutting action and improved chip evacuation, resulting in reduced burr formation and a cleaner seat without additional finishing steps.

Are there any machining parameters recommended for steel? For steel, a feed of 0.14 mm/rev at cutting forces up to 500 N is recommended for this countersink to achieve a balance between finish and tool life; the tool performs best at lower cutting speeds.

Is this tool suitable for both manual and CNC applications? Yes; the combination of an 8 mm cylindrical shank and robust HSS construction makes the countersink suitable for manual drilling machines and CNC equipment where controlled feeds and low speeds are employed

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