Drill bit FANAR solid carbide 8.00 mm, 5xD, HA8 VHM, 53/91 mm shank

Solid carbide drill bit FANAR with 8.00 mm cutting diameter and a 5xD length ratio, designed for accurate and repeatable holemaking in metals and other hard materials. The tool is manufactured from VHM (solid carbide) with HA8 grade and features a stepped shank of 53/91 mm to fit different clamping systems. A Blue Cut coating improves wear resistance and supports efficient chip evacuation, making the drill suitable for both CNC and manual machining processes.

Advantages

The FANAR solid carbide drill provides consistent concentricity and long tool life typical of carbide geometry and HA8 grade. The 5xD length-to-diameter ratio balances rigidity and reach for medium-depth holes while reducing deflection. The stepped 53/91 mm shank allows secure clamping in a variety of tool holders and chucks. Blue Cut coating reduces built-up edge and enhances wear resistance, and the geometry supports controlled chip formation and evacuation.

Suitable for

• Precision drilling in steel and stainless steel
• Holes in hardened or abrasive alloys and cast materials
• CNC drilling operations and manual drilling with rigid fixturing
• Production runs requiring repeatable hole size and surface finish

Key specifications

• Cutting diameter: 8.00 mm
• Length ratio: 5xD (five times the diameter)
• Material: solid carbide (VHM), HA8 grade
• Shank: stepped shank 53/91 mm for dual clamping options
• Coating: Blue Cut for improved wear resistance and chip control
• Intended use: drilling of metals and hard materials in CNC and manual machines

How to use

Mount the drill securely in an appropriate holder or chuck that accepts the 53/91 mm stepped shank. Select cutting speeds and feed rates according to the workpiece material, tool manufacturer guidelines and machine capability. Use appropriate cutting fluid or coolant when machining steels or tougher alloys to extend tool life and improve surface finish. Ensure correct alignment and rigid clamping of the workpiece to minimize runout and vibration.

Usage recommendations

For best results, start with moderate cutting speed and increase feed gradually while monitoring chip shape and surface finish; replace the drill at the first signs of excessive wear or chipping to maintain hole quality. When machining stainless steels or high-alloy materials, use higher feed per revolution and sufficient coolant to avoid work hardening.