8mm NC Spot Drill HSS-Co TiN 90° Right-Hand Cylindrical Shank, h8 DIN 1835-A - TECWERK

Benefit from the combination of HSS‑Co toughness, a TiN low‑friction coating and a DIN 1835‑A cylindrical shank for reliable, position‑accurate spotting on NC machines; order directly via Metav Werkzeuge or consult our specialists for application advice.

NC spot drill D 8 mm HSS‑Co TiN 90° TECWERK – 90° precision point, cylindrical shank

The NC spot drill D 8 mm HSS‑Co TiN 90° TECWERK is a purpose‑made spot‑drilling tool for NC machining and drilling centres, combining fast positioning, clean centring and chamfering in a single pass

• Solid HSS‑Co construction for heat resistance
• TiN coating for reduced friction and longer tool life
• Cylindrical shank to DIN 1835‑A for secure clamping
• Precise 90° centring and chamfering in one operation

Consistent centring and clean chamfers for efficient cycles

Built from HSS‑Co, the tool provides enhanced red hardness compared with plain high‑speed steel, which improves performance under thermal stress during rapid NC cycles. The 90° point geometry produces a defined centre and a reliable chamfer in one pass, reducing set‑up time and the need for subsequent operations. The TiN coating lowers friction at the cutting edge and helps maintain cutting geometry over longer runs, supporting stable hole quality and fewer reworks.

Designed for secure holding and machine compatibility

The DIN 1835‑A cylindrical shank ensures a standardised fit in collets and tool holders, giving concentric mounting and minimised run‑out for repeatable positioning. Right‑hand cutting geometry and the tool’s construction are optimised for spot‑drilling on NC machines and drill rigs, enabling fast indexing between holes and consistent results across production batches. The combination of shank standard and tool design supports automated feeds and tool‑change systems.

Measurable cutting data and material behaviour explained

For work in common structural steels the specified feed is 0.07 mm/rev at cutting forces up to 800 N, a figure that helps planners calculate cycle time and tool life. The 8 mm nominal diameter with tolerance h8 provides tight dimensional control for subsequent reaming or tapping processes. In practice, the cobalt alloy (HSS‑Co) maintains hardness at higher temperatures, so operators can run higher spindle speeds with confidence while preserving hole quality.

Durability, handling and precision control on the shop floor

The TiN surface layer not only reduces adhesive wear but also eases chip flow and resists built‑up edge formation, which translates into fewer interruptions for cleaning and consistent hole finishes. The tool’s tolerance class and standardised shank promote interchangeability and fast replacement in automated environments. Traceable production data and adherence to common tool standards contribute to dependable process planning and quality assurance.

For precise, repeatable spot‑drilling choose the TECWERK solution — contact Metav Werkzeuge for tailored machining recommendations and prompt supply from Emmerich: info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: 2000861388NW
• Brand: TECWERK
• Product type: NC spot drill
• Label: NC‑Anbohrer D.8mm HSS‑Co TiN 90Grad TECWERK
• Standard: DIN 1835‑A
• Pack unit: 1

Core data

• Diameter: 8 mm
• Overall length: 79 mm
• Spiral length: 21 mm
• Point angle: 90°
• Feed in steel (up to 800 N): 0.07 mm/rev
• Diameter tolerance: h8

Materials & special features

• Material: HSS‑Co
• Coating: TiN
• Shank: cylindrical shank to DIN 1835‑A
• Cutting direction: right‑hand cutting
• Application: position‑accurate and fast spot‑drilling on NC machines and drill rigs
• Function: centring and chamfering of thread holes in one pass

FAQ

What materials is this spot drill intended for?
The NC spot drill D 8 mm HSS‑Co TiN 90° TECWERK is primarily specified for use in steels where its HSS‑Co composition and TiN coating offer improved thermal resistance and wear performance.

Is the shank compatible with standard tool holders?
Yes, the cylindrical shank conforms to DIN 1835‑A, making the TECWERK NC spot drill suitable for standard collets and tool holders used on NC machines and drill rigs.

How precise is the nominal diameter?
The tool is manufactured to a diameter tolerance of h8, ensuring precision that supports accurate positioning and downstream threading or reaming processes.

Can this tool centre and chamfer in one pass?
The 90° point geometry of the TECWERK NC spot drill enables centring and a small chamfer in a single operation, reducing cycle time and handling.

What performance data should be used for planning cuts?
Use the indicated feed of 0.07 mm/rev for steel up to 800 N as a baseline for cycle calculations; adjustments may be required for specific alloys or coatings.

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