Drill bit set Abraboro HSS cylindrical 3.5 mm, 10 pcs (AB00010350)

Abraboro HSS cylindrical 3.5 mm drill bit set includes ten identical high-speed steel bits designed for metalworking tasks. Each 3.5 mm bit is ground for general-purpose drilling in steel, non-ferrous metals and similar materials, and the cylindrical shank fits standard chucks on hand drills and drill presses. The set is intended to provide consistent hole size and reliable cutting performance for through-holes and spot-drilling jobs in workshop and professional environments.

Advantages

The HSS material ensures hardness and heat resistance during continuous drilling, while the precise flute geometry supports efficient chip evacuation and stable cutting action. Cylindrical shanks offer secure clamping in most drill chucks, reducing runout and improving hole accuracy. Supplied as a set of ten identical bits, it helps maintain workflow continuity by providing spare tools for repeated operations.

Suitable for

• Drilling holes in mild steel and non-ferrous metals
• Workshop and maintenance drilling tasks
• Use in hand drills and drill presses for through-holes and pilot holes
• Production or repair tasks requiring consistent 3.5 mm holes

Key specifications

• Material: High-speed steel (HSS)
• Drill diameter: 3.5 mm
• Shank type: Cylindrical
• Number of pieces: 10
• Intended application: Metalworking and similar materials

How to use

Select the appropriate cutting speed and a suitable coolant or lubricant when drilling metal to extend tool life and improve hole quality. Secure the workpiece properly and clamp the drill bit in a compatible chuck to reduce wobble. Start with a steady feed pressure, clear chips periodically if necessary, and back out slowly after reaching the desired depth for through-holes. Replace bits from the set when edges show visible wear or chipping.

Usage recommendations

For best results, use cutting oil on steel at recommended speeds, maintain correct drill alignment, and inspect bits regularly. Store the set in a dry place to prevent corrosion and keep spare bits available to avoid downtime during repetitive drilling operations.