150mm Countersink Set DIN 373 HSS 3-Flute Spiral with Pilot Pin, M3–M10, 6-Piece - TECWERK

Take advantage of precise thread preparation, robust HSS cutting geometry and organised storage for faster, more reliable countersinking in metric workshop applications — order via Metav Werkzeuge or contact the consultants for tailored advice.

TECWERK HSS Flat Countersink Set DIN 373 (M3–M10) — 6-piece, spiral-fluted, 3-cut

A TECWERK flat countersink set designed for clean countersinking of metric screws and prepared core holes in mechanical and industrial workshop environments

• HSS, spiral-fluted countersinks
• Three cutting edges for smooth finish
• Fixed pilot pin for accurate centring
• Cylindrical shank; for M3–M10 threads

Accurate preparation for metric fasteners and core holes

The set follows the DIN 373 principle to ensure repeatable, standard-compliant countersinking for threaded fasteners in the M3–M10 range. The integrated fixed pilot pin centres the tool in a prepared core hole, reducing wander and minimising the risk of misaligned screw seating. This reliable centring function leads to fewer rejects and rework cycles, which supports a steady production flow and consistent assembly quality across batches.

Stable cutting action with efficient chip evacuation

Manufactured from HSS, the tools combine hardness and toughness for general-purpose metalworking. The spiral-fluted geometry, together with three cutting edges, produces a uniform surface finish and helps evacuate chips away from the cutting zone, lowering the chance of clogging and heat build-up. This cutting concept enhances process stability during series work and contributes to longer in-service intervals between tool checks.

Compact set for organised workshop handling

Supplied as a 6-piece assortment in a plastic cassette, the set keeps all sizes accessible and protected during storage and transport. Each tool features a cylindrical shank for straightforward mounting in standard collets and drill chucks, enabling rapid tool changes and reduced setup time. The combination of a clearly indexed cassette and standard shank form supports efficient line-side use and a tidier workstation.

For reliable metric countersinking and practical workshop logistics, contact Metav Werkzeuge for detailed specification support and availability — call +49 2822 7131930 or email info@metav-werkzeuge.com to discuss the TECWERK set and suitable accessories

Technical data

• Article number: 2000865390NW
• Name: HSS flat countersink set DIN 373 M3–M10
• Brand: TECWERK
• Pack unit: 1
• Contents: 6-piece

Core technical data

• Standard: DIN 373
• Material: HSS
• Cutting edges: 3
• Thread range: M3–M10
• Shank: cylindrical

Special features

• Spiral-fluted design
• Fixed pilot pin
• Plastic cassette packaging
• Suitable for core-hole centring

FAQ

Which thread sizes are covered by this set?
The TECWERK HSS flat countersink set DIN 373 covers metric thread sizes from M3 to M10, providing the appropriate countersink geometry for those screw diameters.

How many tools are included and how are they supplied?
The set contains six tools and is supplied in a plastic cassette for organised storage and quick access to each size.

What standard does the tool geometry follow?
The countersinks conform to DIN 373 dimensions and cutting geometry, ensuring compatibility with standard metric fastener seating requirements.

How does the fixed pilot pin improve results?
The fixed pilot pin ensures accurate centring in a prepared core hole, reducing tool wander and helping to achieve consistent countersink positions and even screw seating.

Which tool holders are suitable for these countersinks?
Each tool is fitted with a cylindrical shank suitable for standard collet chucks and drill chucks commonly used in workshop drilling and countersinking operations.

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