Drill bit Abraboro HSS-GS 8.5 mm x 165 mm (overall length 165 mm) — elongated, pack of 10

Solid high-speed steel (HSS-GS) drill bit from Abraboro with an 8.5 mm cutting diameter and an overall length of 165 mm. This elongated metal drill bit is supplied as a pack of 10 and is intended for making through and blind holes in a range of ferrous and non-ferrous metals. The HSS-GS material provides improved wear resistance and heat tolerance compared with standard carbon-steel bits, making it suitable for routine metalworking operations that require deeper reach than standard-length bits.

Advantages

The Abraboro HSS-GS bit combines solid high-speed steel construction with a longer shank to reach into deeper workpieces while maintaining cutting performance. Supplied in a batch of ten, it reduces downtime for frequent replacement during production or workshop tasks. The geometry and material are optimized for metal drilling, offering improved edge life and resistance to thermal softening under typical drill speeds and pressures used in handheld drills and drill presses.

Suitable for

• Drilling through and blind holes in mild steel, stainless steel, aluminium and non-ferrous alloys
• Handheld electric drills and cordless drills where extra reach is needed
• Drill press work requiring deeper penetration than standard-length bits
• Maintenance, fabrication and light industrial metalworking tasks

Key specifications

• Cutting diameter: 8.5 mm
• Overall length: 165 mm (elongated version)
• Material: solid high-speed steel (HSS-GS)
• Shank type: straight round shank suitable for standard drill chucks
• Pack quantity: 10 pieces

How to use

Secure the drill bit in a suitable chuck and ensure it is tightened correctly before starting. Select appropriate spindle speed and feed for the workpiece material—lower speeds for stainless steel, moderate speeds for mild steel and higher speeds for aluminium. Use cutting fluid or lubricant for metal drilling to reduce heat buildup and extend tool life. Apply steady pressure and keep the drill perpendicular to the work surface to maintain hole accuracy and prevent breakage. After drilling, clear chips from the hole and inspect the bit for wear.

Usage recommendations

For best performance and longevity, use cutting fluid appropriate to the metal being drilled, maintain recommended speeds for HSS-GS, and avoid excessive lateral force. Replace bits as a set during scheduled maintenance to ensure consistent hole quality across production runs.