12mm NC Spot Drill HSS-Co 90° With Cylindrical Shank DIN 1835-A, Right-Hand - TECWERK

Take advantage of the combination of precise centring, robust HSS‑Co construction and a standardised DIN 1835‑A shank for reliable mounting; the design reduces set‑up time by combining centring and chamfering in one operation. Order the TECWERK centre drill directly via Metav Werkzeuge or consult the Metav team for application advice.

TECWERK NC centre drill D12 mm HSS‑Co, 90°

The TECWERK NC centre drill D12 mm HSS‑Co 90° is a cobalt high‑speed steel centre/spot drill designed for positionsensitive pilot drilling and chamfering on NC machines and drilling machines

• HSS‑Co alloy for improved wear resistance
• 90° point for precise centring and chamfering
• Cylindrical shank DIN 1835‑A for secure mounting
• Feed 0.1 mm/rev in steel up to 800 N

Reduce operations with accurate centring and chamfering

The centre drill is engineered to perform centring and chamfering in a single pass, which shortens cycle times and minimises tool changes. The 90° point gives a defined contact geometry that helps to centre the tool reliably before subsequent drilling or tapping operations. For production environments this means fewer re‑clamps and improved repeatability on batch work, translating into more consistent hole quality and less rework.

High‑temperature performance and longer tool life

Constructed from HSS‑Co (cobalt‑alloy high‑speed steel), the tool maintains cutting edge hardness at elevated temperatures encountered during high‑speed machining. The cobalt alloy increases wear resistance and fracture toughness compared with standard HSS, making the tool suitable for repeated cycle use in industrial settings. This material choice supports longer in‑service life and more stable metrology of the machined hole profile.

Secure clamping and machine compatibility

The cylindrical shank to DIN 1835‑A ensures standardised mounting in toolholders and collets, preventing slippage and run‑out in NC spindles. The tool is right‑hand cutting and is optimised for integration into automated set‑ups on NC machines and drill rigs. Clear specification of the shank standard removes ambiguity during tool changeover and supports faster set‑up times in mixed‑tool environments.

Process parameters explained for reliable feeds

Specified feed 0.1 mm/rev in steel up to 800 N provides a practical starting point for machining trials; this value reflects a balanced feed for both centring and light chamfering without overloading the small diameter. The feed recommendation helps to safeguard the tool’s life while delivering consistent entry geometry for subsequent threading. When higher or lower cutting forces are expected, adjustment of feed and speed should follow machine and workpiece recommendations.

Contact Metav Werkzeuge today for tailored application advice or to source the TECWERK NC centre drill (SKU 2000860112NW) directly from stock in Emmerich; email info@metav-werkzeuge.com or call +49 2822 7131930 for precise ordering information

Technical data

• Article number: 2000860112NW
• Label: NC-Anbohrer D.12mm HSS-Co 90Grad TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Diameter: 12 mm
• Point angle: 90°
• Shank: cylindrical to DIN 1835‑A
• Feed in steel up to 800 N: 0.1 mm/rev
• Cutting direction: right‑hand cutting

Special features

• Material: HSS‑Co (cobalt high‑speed steel)
• Application: positionsensitive and rapid spot drilling on NC machines and drilling machines
• Function: centring and chamfering of thread holes in one operation
• Standardised shank for secure mounting

FAQ

What primary tasks is this centre drill designed for?
The TECWERK NC centre drill is intended for accurate pilot centring and simultaneous chamfering of thread holes on NC machines and drilling machines, reducing set‑ups.

Which material is the tool made from and what are the benefits?
Made from HSS‑Co, the tool offers enhanced heat resistance and wear performance compared with conventional HSS, supporting longer tool life in repetitive production.

How should the feed recommendation be interpreted?
The stated feed of 0.1 mm/rev applies for steel conditions up to 800 N cutting force; it serves as a reliable baseline for process trials and can be adapted to machine and material specifics.

Is the shank compatible with standard holders?
Yes. The cylindrical shank conforms to DIN 1835‑A, ensuring compatibility with standard collets and toolholders for secure mounting and reduced run‑out.

Can this tool be used solely for centring, or does it also prepare thread starts?
The geometry allows both precise centring and light chamfering, making it suitable to prepare thread starts by creating a clean entry and correct lead angle in one operation.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com