Drill bit Forsage 5.5 mm HSS+Co for metal, model F-DB55H

Forsage 5.5 mm HSS+Co drill bit for metal is a precision rotary cutting tool designed for drilling through a range of ferrous and non-ferrous metals. Manufactured from high-speed steel with added cobalt, the bit offers improved heat resistance and extended cutting life compared with standard HSS. It is intended for use in handheld drills and drill presses for tasks that require accurate, clean holes in sheet metal, structural steel, and similar materials.

Advantages

The HSS+Co composition increases hardness at high temperatures and improves wear resistance during continuous drilling. A ground tip geometry ensures reliable centering and reduced walking on metal surfaces, while the flute design efficiently evacuates chips to maintain cutting performance. The rigid shank fits standard drill chucks and supports consistent concentricity for repeatable holes.

Suitable for

• Drilling holes in sheet metal and thin steel plates
• Creating accurate openings in structural steel components
• Workshop maintenance and repair tasks requiring metal drilling
• Use with hand-held electric drills and bench drill presses

Key specifications

• Diameter: 5.5 mm
• Material: High-speed steel with cobalt (HSS+Co)
• Tip geometry: ground for accurate centering
• Shank type: straight shank compatible with standard chucks
• Application: designed for metal and metal alloys

How to use

Secure the drill bit firmly in the chuck, ensuring proper alignment and grip. Mark and, if necessary, center-punch the drilling position to prevent slippage. Use appropriate drilling speeds for the material being processed — lower speeds for harder steels and higher speeds for softer metals — and apply steady, moderate feed pressure. Periodically withdraw the bit to clear chips and prevent overheating. For best results when drilling thicker or harder metals, use cutting fluid to reduce friction and extend tool life.

Usage recommendations

Wear appropriate eye and hand protection during drilling. Select drill speeds and feed rates based on the metal type and thickness, and replace the bit when signs of excessive wear or chipping appear to maintain hole quality and safety.