FANAR solid carbide twist drill bit Ø8.00 mm, 5xD, HA8 VHM Blue Cut, 53/91 mm

FANAR solid carbide twist drill bit Ø8.00 mm, 5xD, HA8 VHM Blue Cut, 53/91 mm is a precision-engineered cutting tool made from solid carbide (VHM). It features an HA8 geometry optimized for reliable centring and chip evacuation, and a Blue Cut coating that enhances surface hardness and wear resistance. The drill is offered with a 5xD length ratio and two overall lengths (53 mm and 91 mm) to cover standard-through and deeper drilling tasks in a range of metallic and hard materials.

Advantages

The solid carbide construction provides high stiffness and thermal stability for accurate hole making at moderate to high cutting speeds. HA8 point geometry improves penetration and reduces walking at drill start, while the Blue Cut coating reduces friction and extends tool life under abrasive or interrupted cutting conditions. The 5xD length ratio balances reach and rigidity, giving stable cutting performance for both shallow and longer holes.

Suitable for

• Drilling holes in steel and stainless steel
• Machining cast iron and non-ferrous metals
• Through-holes and deeper hole drilling up to 5×D
• Production and toolroom machining requiring repeatable hole quality

Key specifications

• Material: solid carbide (VHM)
• Diameter: 8.00 mm
• Point geometry: HA8
• Coating: Blue Cut
• Length ratio: 5×D
• Overall lengths available: 53 mm (short/standard) and 91 mm (long)

How to use

Mount the drill in an appropriate collet or chuck suitable for carbide tools, ensuring concentricity and secure clamping. Select cutting speeds and feed rates recommended for solid carbide tools and the specific workpiece material; reduce cutting speed for stainless steels and increase for softer non-ferrous metals. Use steady coolant or lubricant where applicable to control heat and flush chips; peck drilling cycles are advised when working to full depth to improve chip evacuation and reduce breakage risk. Inspect the hole quality and tool condition periodically during long runs.

Usage recommendations

For best results, use stable machine setups and minimal runout. Apply appropriate cutting data for carbide drills and use pecking or cycle drilling for deep holes. Replace the tool when wear affects surface finish or dimensional accuracy to maintain consistent hole quality.