FANAR solid carbide drill bit (VHM) diameter 8.50 mm, length 61/103 mm, 5xD, HA10, Blue Cut

FANAR solid carbide drill bit (VHM) with an 8.50 mm cutting diameter and a working/overall length of 61/103 mm is designed for precision metal drilling in industrial and workshop environments. The tool's 5xD length-to-diameter ratio provides a balance between rigidity and reach, while the HA10 substrate combined with Blue Cut coating improves wear resistance and chip evacuation. This drill bit is intended for applications requiring consistent hole quality, long tool life and stable cutting performance when machining a variety of metals.

Advantages

The solid carbide construction offers high rigidity and reduced tendency to deflect, which supports accurate hole positioning and repeatable diameters. The HA10 grade substrate provides toughness for interrupted cuts and moderate hardness for durability. Blue Cut coating reduces friction and enhances chip flow, contributing to longer tool life and more reliable machining cycles. The 5xD geometry allows deeper drilling than short-flute designs while maintaining acceptable stiffness for most general metalworking tasks.

Suitable for

• General and precision drilling in steel, stainless steel and non-ferrous metals
• Production and small-batch machining where repeatability is required
• Drilling operations on CNC machines, drilling heads and manual machines with appropriate rigidity

Key specifications

• Material: solid carbide
• Cutting diameter: 8.50 mm
• Working length: 61 mm
• Overall length: 103 mm
• Length-to-diameter ratio: 5xD
• Substrate designation: HA10
• Coating: Blue Cut
• Application focus: metal drilling with emphasis on rigidity and repeatable hole quality

How to use

Use appropriate machine setups that ensure sufficient rigidity: secure the workpiece, minimize overhang and use a properly clamped toolholder. Select cutting speeds and feeds according to the machined material and the tool manufacturer's recommendations for carbide drills with Blue Cut coating. Apply suitable coolant or cutting fluid to improve chip evacuation and temperature control. For best results, pilot or center drills may be used for precise positioning before full-diameter drilling when required.

Usage recommendations

Monitor tool wear and inspect hole quality periodically. Adjust speeds and feeds downward in the presence of heavy interruption or hard materials. For extended tool life, maintain stable machining conditions, use adequate coolant flow and replace the drill at first signs of excessive wear or chipping.