5-10mm Cross Hole Countersink 90° HSS-Co With Cylindrical Shank, 8mm Shaft - TECWERK

Take advantage of a robust HSS‑Co cutting body and a 90° geometry for consistent, burr‑free results, combined with secure mounting via an 8 mm cylindrical shank to keep production steady. Order the tool directly via Metav Werkzeuge or consult our specialists for specification matching.

Through‑hole countersink 5–10 mm, 90° HSS‑Co – TECWERK

The through‑hole countersink 5–10 mm is a purpose‑built tool for burr‑free countersinking and precise deburring in steel, castings and non‑ferrous metals, engineered for low cutting speeds and reliable chip control.

• HSS‑Co cutting material for extended tool life
• 90° countersink angle for standard fastener seating
• 8 mm cylindrical shank for secure clamping
• Chip evacuation through the drill hole prevents clogging

Consistent results across common workshop materials

The cobalt high‑speed steel construction (HSS‑Co) gives the countersink a durable cutting edge that tolerates intermittent heat better than standard high‑speed steels. This material choice translates into fewer tool changes and more predictable component quality when working with steel, cast iron and non‑ferrous metals. The 90° geometry ensures standardised seating for screws and fasteners, while the shearing cutting action reduces the tendency to tear material fibres, producing a clean, burr‑free edge that often removes the need for secondary finishing.

Design elements that reduce downtime and improve surface finish

A key functional advantage is the integrated chip ejection: chips are routed through the existing drill hole, which significantly reduces the risk of chip jamming at the workpiece and prevents scoring of the countersunk surface. Combined with the tool’s deliberate shearing action, this design supports rattle‑free and low‑vibration operation, delivering consistently smooth edges. For operations where surface quality matters, such as assembly parts or visible fittings, the controlled chip flow and 90° seating geometry contribute directly to fewer rejects and less rework.

Practical dimensions and process guidance for reliable operation

The tool features an 8 mm shank diameter and an overall length of 48 mm, providing a compact form that suits common toolholders and drill chucks. Recommended feed performance in steel up to 500 N is around 0.09 mm per revolution, and the tool achieves its best results at lower cutting speeds, which helps manage thermal load and extend life. The cylindrical shank enables stable clamping and repeatable concentricity, while the modest overall length aids access in confined setups. These specifications support efficient integration into both manual and CNC workflows, balancing durability with straightforward handling.

Contact Metav Werkzeuge in Emmerich for tailored technical advice or to arrange supply of this TECWERK through‑hole countersink — email info@metav-werkzeuge.com or call +49 2822 7131930

Technical data

• Article number: 2000865147NW
• Product name: Through‑hole countersink 5–10 mm 90° HSS‑Co TECWERK
• Packaging unit: 1
• UID: 2000865147NW

Facts

• Diameter range: 5–10 mm
• Countersink angle: 90°
• Shank diameter: 8 mm
• Overall length: 48 mm
• Recommended feed in steel up to 500 N: 0.09 mm/rev

Special features

• Cutting material: HSS‑Co (cobalt high‑speed steel)
• Shearing cutting action for low burr formation
• Chip evacuation through the drill hole to prevent clogging
• Ideal for burr‑ and rattle‑free countersinking and deburring
• Best results at lower cutting speeds
• Cylindrical shank for secure toolholding

FAQ

What materials is this countersink suitable for?
The TECWERK through‑hole countersink is suitable for steel, cast iron, and non‑ferrous and light metals, offering clean deburring and reliable seating across these materials.

What is the recommended feed rate for steel?
For steel applications up to 500 N, a feed of approximately 0.09 mm per revolution is recommended to balance surface finish and tool life.

How does the tool prevent chip clogging?
Chip evacuation is achieved through the drill hole so that swarf is expelled away from the workpiece, reducing the risk of clogging and surface damage during countersinking.

Which shank size is required for mounting?
The tool has an 8 mm cylindrical shank, compatible with standard collets and chucks that accept an 8 mm diameter.

Is the 90° angle suitable for standard fasteners?
Yes, the 90° geometry is designed for standard fastener seating and ensures consistent, flush countersinks for many common screw and bolt heads.

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