12mm NC Spot Drill HSS-Co 90° Right-Hand Cylindrical Shank DIN 1835-A, h8 Tolerance - TECWERK

Take advantage of the combination of HSS‑Co material, a 90° centring geometry and a cylindrical shank to DIN 1835‑A for reliable, repeatable positioning and faster set‑ups on CNC machines — order directly via Metav Werkzeuge or consult our specialists for application advice.

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

A NC centre drill D12 mm HSS‑Co 90° engineered for precise spot‑drilling, rapid centring and chamfering on CNC machines and drilling centres

• HSS‑Co for high wear resistance
• Cylindrical shank to DIN 1835‑A
• 90° tip for exact centring and chamfering
• Feed in steel up to 800 N: 0.1 mm/rev

Precise centring and faster cycle times

The spotting tool delivers consistent, position‑accurate starts that reduce wandering and tool deflection in follow‑up operations. Its 90° tip geometry creates a clear centre mark and a small chamfer in one pass, eliminating an extra machining step and shortening cycle times on production runs. For batch work on NC machines, this means fewer repositions and a measurable productivity gain.

Durable material and proven geometry for longer life

Manufactured from HSS‑Co (cobalt high‑speed steel), the insert material provides higher hot hardness and better wear resistance than standard high‑speed steels. The robust geometry and cobalt alloy extend tool life under interrupted cuts and elevated temperatures, especially when machining tougher materials. That durability translates into reduced tool changes and steadier process quality over time.

Machine compatibility and secure clamping

The cylindrical shank to DIN 1835‑A ensures secure, standardised seating in machine spindles and holders, improving concentricity and reducing runout. Designed for right‑hand cutting, the tool is suitable for conventional setups on CNC milling machines and drilling centres. The standardised shank also speeds changeovers and keeps set‑up times low in mixed‑tool workshops.

Application data and practical recommendations

With a 12 mm nominal diameter and an overall length of 102 mm with 30 mm spiral length, the centre drill is optimised for accurate pre‑drilling and chamfering ahead of tapping operations. Recommended feed in steel up to 800 N is 0.1 mm/rev, which balances chip formation and surface finish for clean centring. Where necessary, moderate cutting fluids can help evacuate chips and lower tool temperatures for extended life.

For technical application support or to order TECWERK centre drills, contact Metav Werkzeuge — our specialists in precision tools provide bespoke advice and rapid supply from Emmerich: info@metav-werkzeuge.com • +49 2822 7131930

Technical data

• Article number: 2000860112NW
• Manufacturer: TECWERK
• Product type: NC centre drill

Specifications

• Diameter: 12 mm
• Overall length: 102 mm
• Spiral length: 30 mm
• Tip angle: 90°
• Tolerance diameter: h8
• Packaging unit: 1
• Feed in steel up to 800 N: 0.1 mm/rev

Special features

• Material: HSS‑Co
• Shank design: cylindrical shank to DIN 1835‑A
• Cutting direction: right‑hand cutting
• Application: position‑accurate spot‑drilling and chamfering on NC machines and drilling centres
• Suitable for centring and chamfering of tapped holes in one operation

FAQ

What materials can this centre drill machine reliably?
The TECWERK NC centre drill D12 mm HSS‑Co 90° is made from HSS‑Co, which offers suitability for a broad range of steels and tougher materials where increased hot hardness is required.

Is the shank compatible with standard toolholders?
Yes. The tool features a cylindrical shank to DIN 1835‑A, making it compatible with standard clamping systems used in CNC machines and drilling centres.

What is the recommended feed for typical steel applications?
For steel up to approximately 800 N cutting resistance the recommended feed is 0.1 mm/rev, balancing hole quality and tool life.

Can this tool produce a chamfer as well as the centre?
Yes. The 90° tip geometry is designed to provide a clean centre and a small chamfer in a single operation, reducing process steps before tapping.

How does the HSS‑Co composition benefit production runs?
The cobalt alloy in HSS‑Co increases wear resistance and hot hardness, which helps maintain consistent performance during longer runs and under tougher cutting conditions.

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