20mm NC Spot Drill HSS-Co 120° Right-Hand Cylindrical Shank h8, DIN 1835-A - TECWERK

Taking advantage of the combination of HSS‑Co performance, a 20 mm diameter and a 120° point for fast, positionally accurate spot‑drilling, this tool streamlines set‑up and reduces cycle times on NC machines — order directly via Metav Werkzeuge or contact our consultants for application advice.

TECWERK NC spot drill D 20 mm, HSS‑Co, 120° point — centre drill for precise NC work

The TECWERK NC spot drill D 20 mm is a purpose‑built centre drill for positionally accurate and rapid spot‑drilling, centring and chamfering of tapped holes in one pass on NC machines and drilling centres.

• HSS‑Co for higher heat resistance and wear life
• DIN 1835‑A cylindrical shank for secure clamping
• 120° point for reliable centring and chamfering
• Right‑hand cutting for standard NC spindle rotation

Faster set‑up and consistent hole positioning for production runs

The combination of a 20 mm diameter cutting head and a 120° point ensures quick entry and reliable centring, reducing the need for secondary alignment. Designed for NC environments, the tool provides precision that lowers scrap rates and shortens cycle time through accurate initial spot‑drilling. The solid‑carbide‑enhanced high‑speed steel (HSS‑Co) offers improved thermal stability compared with conventional HSS, which supports sustained cutting under higher cutting forces typical of automated drilling processes.

Secure clamping and compatibility with automated spindles

With a DIN 1835‑A cylindrical shank, the drill seats reliably in standard toolholders and collets used on milling machines and drilling centres. The standardised shank geometry simplifies tool changes and tool‑holder inventory, enabling rapid transitions between operations and ensuring concentricity during high‑precision workflows. The right‑hand cutting geometry matches common spindle rotation, avoiding unexpected orientation issues during NC programme set‑up.

Clear machining data for reliable process planning

The tool is specified for a feed of 0.12 mm/rev in steel up to 800 N, providing a practical baseline for CAM programming and cycle time estimation. Such measurable data supports predictable throughput and helps planners balance feed against surface finish and tool life. By using these parameters as starting points, production engineers can fine‑tune settings for specific materials and machines without lengthy trial‑and‑error.

One‑pass centring and chamfering to reduce operations

Designed to centre and chamfer tapped holes in a single operation, the centre drill removes the need for separate chamfering tools in many setups, saving handling time and reducing fixturing complexity. The tool’s robust HSS‑Co composition provides a compromise between toughness and wear resistance, making it suitable for recurring production tasks where repeatability and tool life matter. For workshops seeking to simplify process chains, this tool can be an effective way to consolidate steps while maintaining quality.

Contact Metav Werkzeuge for tailored application support and rapid supply of TECWERK centre drills from our Emmerich distribution — expert advice and dependable delivery from Metav Werkzeuge are available by email or phone

Technical data

• Article number: 2000860100NW
• Standard: DIN 1835‑A
• Material: HSS‑Co
• Product type: NC spot drill

Facts

• Diameter: 20 mm
• Overall length: 131 mm
• Spiral length: 45 mm
• Point angle: 120°
• Tolerance: h8
• Feed in steel up to 800 N: 0.12 mm/rev
• Cutting direction: right‑hand cutting
• Shank design: cylindrical shank (DIN 1835‑A)
• Packaging unit: 1

Special features

• Positionally accurate and fast spot‑drilling on NC machines and drilling centres
• Centre and chamfer of tapped holes in one pass
• Suitable for CAM/CNC production environments
• DIN‑standardised shank for broad compatibility

FAQ

What materials is this centre drill suitable for?
The TECWERK NC spot drill D 20 mm (HSS‑Co, SKU 2000860100NW) is primarily specified with feed data for steel; HSS‑Co offers improved heat resistance and is suitable for a range of steel machining tasks common in NC applications.

Can this tool be used directly in standard toolholders?
Yes — the DIN 1835‑A cylindrical shank of the TECWERK centre drill ensures compatibility with standard collets and toolholders found on most drilling centres and NC machines.

How does the 120° point affect hole quality?
A 120° point provides reliable centring and chamfering, reducing burr formation and improving the repeatability of subsequent tapped holes when used with the recommended feed and machine settings.

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