FANAR drill bit NWKK FI 8.30 mm 37/79 mm HSSE TiN, DIN 1897

FANAR NWKK FI solid drill bit with a diameter of 8.30 mm and overall dimensions 37/79 mm, produced to DIN 1897 specifications. The bit is made from HSSE (high-speed steel with cobalt) and finished with a titanium nitride (TiN) coating to improve surface hardness and extend tool life. The DIN 1897 shank geometry ensures compatibility with machine chucks and drill holders designed for this standard, making the bit suitable for industrial and workshop metal drilling applications.

Advantages

The HSSE substrate provides higher red hardness and toughness compared with standard high-speed steel, improving performance in demanding metalworking operations. The TiN coating reduces friction and increases wear resistance, which helps maintain cutting edge integrity and reduces the frequency of tool changes. DIN 1897 shank design delivers secure clamping and concentricity when used with appropriate holders, contributing to accurate hole quality and repeatable results.

Suitable for

• Drilling through steel and alloy steels
• Workshop and production-line metalworking
• Machine tool operations with DIN 1897 compatible chucks or holders
• Situations requiring improved tool life and wear resistance

Key specifications

• Cutting diameter: 8.30 mm
• Overall length: 79 mm
• Working length: 37 mm
• Material: HSSE (high-speed steel with cobalt)
• Coating: TiN (titanium nitride)
• Shank geometry: DIN 1897 standard
• Type: solid drill bit, NWKK FI style

How to use

Select an appropriate spindle speed and feed rate for the workpiece material and the 8.30 mm diameter bit; for steels, reduce speed compared to non-ferrous materials to preserve tool life. Secure the drill bit in a DIN 1897 compatible chuck or holder, ensuring correct seating and concentric clamping. Use cutting fluid or coolant when drilling steels and alloys to reduce heat, lower friction, and flush chips. Apply steady feed pressure and withdraw periodically when drilling deep holes to clear chips and prevent clogging.

Usage recommendations

For best results on alloyed and stainless steels, use moderate spindle speeds and adequate coolant. Inspect the TiN coating and cutting edges before use; replace the bit when wear compromises hole accuracy or increases cutting forces. Store the drill bit in a dry, protected place to preserve the coating and cutting geometry.