Drill bit FANAR WIERTLO NC 90 Ø10.00 mm VHM, length 20/72 mm

FANAR WIERTLO NC 90 solid carbide drill bit Ø10.00 mm with overall and working length 20/72 mm is a precision tool for metal drilling. Made from VHM (solid carbide), the drill bit provides high hardness and thermal stability, allowing accurate and repeatable Ø10 mm holes in a wide range of steels and non-ferrous metals. It is suitable for both CNC machining centres and manual drilling machines used in production, maintenance and toolrooms.

Advantages

The solid carbide construction ensures good wear resistance and dimensional stability during continuous operation. A NC 90 geometry is optimised for centring and straight hole entry, reducing walking at the start of drilling and providing consistent hole quality. The short overall/working length ratio supports rigidity and reduces vibration, which improves surface finish and tool life. Suitable for high-speed applications, the design helps maintain hole tolerance and repeatability.

Suitable for

• Precision drilling of Ø10.00 mm holes in steel and non-ferrous metals
• CNC machining centres and automated drilling processes
• Manual drilling machines in maintenance and workshop environments
• Production runs and small-batch manufacturing requiring repeatable hole size

Key specifications

• Material: solid carbide (VHM)
• Diameter: 10.00 mm
• Overall length / working length: 20/72 mm
• Tip geometry: NC 90 for improved centring
• Compatibility: suitable for use in CNC and manual drilling machines

How to use

Secure the drill bit in a compatible chuck or collet with appropriate clamping length for the tool shank. Select cutting speed and feed according to the workpiece material and machine rigidity, using coolant or cutting fluid as required to control temperature and chip evacuation. Begin drilling with light pecking if drilling into a hardened or difficult-to-centre surface, then proceed with continuous drilling once the hole is established. Inspect hole diameter and surface after drilling to confirm tolerances and recondition or replace the tool when wear affects hole quality.

Usage recommendations

For best results, use stable machine setup, proper coolant, and feeds/speeds matched to workpiece material. For stainless steels and tougher alloys reduce speed and increase feed slightly; for aluminium use higher speeds with effective chip evacuation. Replace the drill at first signs of excessive wear to maintain hole accuracy.