Drill bit Abraboro HSS cylindrical for metal 9 mm, set of 10 (AB44009000)

Abraboro HSS cylindrical drill bits for metal, 9 mm diameter, set of 10 (AB44009000) are precision-designed high-speed steel drills intended for general metalworking. Each bit features a 9 mm cutting diameter and a straight cylindrical shank made to fit standard chucks. The set provides multiple identical bits to support repetitive drilling tasks in fabrication, maintenance or repair environments where consistent hole size and reliable performance are required.

Advantages

The HSS material offers good hardness and heat resistance for drilling steel and a range of other metals at moderate speeds. The cylindrical shank ensures secure clamping in common drill chucks and compatibility with many bench and portable drills. Supplied as a set of ten, the collection reduces downtime by providing spares for wear or breakage and supports productive work in workshops and industrial settings.

Suitable for

• Drilling through mild and alloy steel
• Maintenance and repair work in workshops
• Fabrication and assembly tasks requiring 9 mm holes
• Use with corded or cordless drills and drill presses

Key specifications

• Material: high-speed steel (HSS)
• Cutting diameter: 9 mm
• Shank type: cylindrical (straight) shank for standard chucks
• Pack quantity: 10 drill bits
• Intended application: metal drilling

How to use

Secure the selected 9 mm HSS bit in the drill chuck, ensuring the shank is fully seated and the chuck tightened. Select an appropriate cutting speed for the material being drilled, apply steady feed pressure, and use cutting fluid or lubricant when working with steel to reduce heat and extend tool life. Clear chips regularly to avoid clogging and inspect bits for wear or damage before continued use. Replace worn or broken bits with remaining pieces from the set to maintain consistent hole quality.

Usage recommendations

For best results when drilling steel, start with a moderate rotational speed and use a suitable cutting lubricant. When drilling larger holes or hard alloys, reduce speed and increase lubrication to minimise heat and prolong bit life. Always wear appropriate eye protection and follow standard workshop safety procedures.