Carbide Drill Bit FANAR DIN 6537 K WK3 19.5 mm VHM TiAlN 131–79 mm

Solid carbide twist drill FANAR DIN 6537 K WK3 19.5 mm VHM TiAlN with a usable length range of 131–79 mm is designed for reliable metal drilling in production and maintenance environments. The tool combines a full carbide body with a titanium aluminum nitride (TiAlN) coating to provide enhanced wear resistance and thermal stability during high-speed and interrupted cutting operations. Its DIN 6537 K geometry and WK3 shank form ensure compatibility with standard drill holders and machine tool setups used in industrial machining.

Advantages

The full carbide (VHM) construction delivers rigidity and improved cutting performance in steels and non-ferrous metals. The TiAlN coating increases surface hardness and heat resistance, extending tool life under elevated temperatures. The DIN 6537 K geometry provides axial stability and effective chip evacuation, while the specified usable length range allows selection for deep or medium-depth drilling without sacrificing stiffness. The drill’s design reduces vibration and helps maintain consistent hole quality in repetitive production runs.

Suitable for

• Precision drilling in steels and cast materials
• Production machining and repetitive holemaking
• Maintenance and repair operations on metal components
• Drilling where high wear resistance and thermal stability are required

Key specifications

• Material: solid carbide (full carbide, VHM)
• Coating: TiAlN (titanium aluminum nitride)
• Standard/geometry: DIN 6537 K
• Shank form: WK3
• Diameter: 19.5 mm
• Usable length range: 131–79 mm
• Intended application: metal drilling (industrial use)

How to use

Select a suitable drill holder or chuck compatible with the WK3 shank form and secure the drill with correct clamping to minimize runout. Set spindle speed and feed according to workpiece material, carbide tooling recommendations, and machine rigidity; reduce cutting speed for hard alloys and increase coolant flow or use through-tool coolant where possible. Start drilling with a pilot hole if required for large-diameter or deep holes, and retract periodically for chip clearance during deep drilling. Monitor tool wear and replace the drill when dimensional accuracy or surface finish degrades.

Usage recommendations

Use appropriate cutting fluids or high-pressure coolant to maximize tool life and chip evacuation. For best results, follow machining data sheets for carbide drills regarding speeds, feeds, and coolant for the specific material being machined. Inspect clamping and tool holding for concentricity to ensure consistent hole quality.