Drill bit FANAR NAWIERTAK NC FI 8.00 mm 90° HSSE TiN

FANAR NAWIERTAK NC FI 8.00 mm 90° HSSE TiN is an 8.00 mm diameter twist drill engineered for precision drilling in metalworking. The drill features a 90° point angle for effective center drilling and chamfered hole starts, is manufactured from HSSE (high-speed steel with cobalt) for increased red hardness and toughness, and is finished with a titanium nitride (TiN) coating to improve wear resistance and reduce friction during cutting. This combination makes the tool suitable for repeated production cycles and CNC operations where hole geometry and tool life are important.

Advantages

The HSSE substrate provides higher hot hardness and improved resistance to chipping compared with conventional high-speed steel, while the TiN coating decreases abrasive wear and helps maintain cutting-edge sharpness. The 90° point geometry ensures reliable centering and predictable chip formation on a range of ferrous and non-ferrous alloys. The tool’s balanced construction supports consistent hole quality and extended time between regrinds or replacements.

Suitable for

• Precision drilling in steel and cast iron
• CNC machining and automated drilling processes
• Production environments with repetitive holemaking
• Workshop use where accurate hole starts and durability are required

Key specifications

• Drill diameter: 8.00 mm
• Point angle: 90°
• Material: HSSE (high-speed steel with cobalt)
• Coating: TiN (titanium nitride)
• Geometry: twist/drill bit suitable for metalworking

How to use

Select appropriate spindle speed and feed rate for the workpiece material, taking into account the HSSE substrate and TiN coating to avoid excessive temperatures. Use cutting fluid or coolant for improved chip evacuation and heat control when drilling steels; for some non-ferrous materials, reduced or no coolant may be acceptable. Clamp the workpiece securely and ensure concentric toolholding to maintain hole accuracy. For best results, pre-center or use spotting for deep or difficult setups to prevent walking.

Usage recommendations

For longer tool life, avoid excessive dwell at the hole entry and adjust speeds downward when drilling hardened steels. Recondition or replace the drill when wear patterns affect hole tolerance or surface finish. Match feed and speed to material hardness and machine rigidity to optimize performance and maintain consistent hole quality.