Drill bit for metal FANAR HSS cylindrical 8.9 mm

FANAR HSS cylindrical drill bit with an 8.9 mm cutting diameter is designed for drilling metal materials. Manufactured from high-speed steel (HSS), this cylindrical-shank drill bit offers heat resistance and wear performance required for machining steel, iron and non-ferrous metals. The geometry and tolerance of the cutting edges make it suitable for producing through-holes and pilot holes in workshop, repair and maintenance settings using hand-held drills or drill presses.

Advantages

The HSS material provides good hardness and maintains cutting performance at elevated temperatures, reducing premature wear during continuous drilling. The cylindrical shank enables secure clamping in standard chucks and allows straightforward use in portable drills and bench machines. The 8.9 mm cutting diameter is useful when a slightly undersize or close-to-9 mm hole is needed, delivering consistent hole diameter and surface quality when used with appropriate speeds and lubrication.

Suitable for

• Drilling through-holes in steel and iron plates
• Creating pilot holes in non-ferrous metals such as aluminum and brass
• Maintenance and workshop machining with hand drills and drill presses
• General metal fabrication and repair tasks

Key specifications

• Cutting diameter: 8.9 mm
• Material: High-speed steel (HSS)
• Shank type: cylindrical
• Intended material: steel, iron, non-ferrous metals
• Typical applications: through-holes, pilot holes

How to use

Secure the drill bit in the chuck, ensuring the cylindrical shank is clamped evenly and concentrically. Select appropriate spindle speed for the material being drilled—lower speeds for harder steels and higher speeds for softer non-ferrous metals—then apply steady feed pressure. Use cutting fluid or lubricant when drilling steels and iron to reduce heat buildup and extend tool life. Withdraw the bit periodically on deep holes to clear chips and prevent clogging.

Usage recommendations

Use appropriate personal protective equipment, clamp the workpiece securely, and match drilling speed and lubrication to the work material. Inspect the bit for wear or damage before use and replace when cutting edges are dull to maintain hole quality and safe operation.