Drill bit set Abraboro HSS cylindrical for metal Ø4.5 mm, 10 pieces (AB44004500)

Set of Abraboro HSS cylindrical drill bits for metal, 10 pieces with a diameter of 4.5 mm. These high-speed steel bits are designed for drilling steel and other ferrous and non-ferrous metals. The cylindrical shank allows secure clamping in standard chucks and drill presses. The set is intended for professional and DIY metalworking tasks including through-holes, pilot holes and general-purpose metal drilling.

Advantages

The HSS material provides wear resistance and good heat tolerance during continuous drilling in metal. Uniform 4.5 mm diameter across all ten pieces ensures consistent hole size and simplified tool selection. Cylindrical shanks deliver reliable grip in a wide range of chucks and holders, while the set format supplies multiple replacements for repeat jobs or for use across different workstations.

Suitable for

• Drilling holes in steel and cast iron
• Piercing non-ferrous metals such as aluminum and brass
• Creating pilot holes for tapping or fastening
• Production and maintenance tasks in workshops and garages
• DIY metalworking and repair projects

Key specifications

• Material: high-speed steel (HSS)
• Shank type: cylindrical shank suitable for standard chucks
• Drill diameter: 4.5 mm
• Quantity: 10 pieces per set
• Intended use: drilling in ferrous and non-ferrous metals

How to use

Select an appropriate drilling speed for the metal being worked—lower RPMs for harder steels and higher RPMs for softer non-ferrous materials. Secure the bit in the chuck so that the shank is fully inserted and clamped. Use cutting fluid or coolant when drilling steel to reduce heat and extend tool life. Start with a center punch or pilot hole if precision is required, and apply steady axial pressure while maintaining alignment. Withdraw periodically to clear chips and reapply lubricant as needed.

Использование и рекомендации

Store the bits in a dry place and inspect them before use for any visible wear or damage. Replace dull bits to maintain hole quality and reduce risk of breakage. When drilling thin sheets, support the workpiece to prevent bending and burr formation.