Drill Bit Abraboro HSS cylindrical for metal, 8 mm, pack of 10 (AB44008000)

Abraboro HSS cylindrical drill bits for metal, 8 mm diameter, pack of 10 are designed for cutting and drilling various metal materials. Manufactured from high‑speed steel (HSS) with a straight (cylindrical) shank, these bits are suitable for use in handheld drills and drill presses where consistent hole size and wear resistance are required. The pack contains ten identical 8 mm bits, intended for workshop, maintenance and fabrication tasks that call for reliable metal drilling performance.

Advantages

High‑speed steel construction provides a balance of hardness and toughness for drilling in steel and other common metals. The cylindrical shank fits standard drill chucks and allows stable mounting in both portable and stationary drilling equipment. Supplied as a pack of ten, the set reduces downtime caused by broken or blunt bits and is convenient for repetitive production or maintenance work. Ground tips and consistent geometry help produce accurate holes with predictable results.

Suitable for

• Drilling through mild steel, cast iron and non‑ferrous metals
• Workshop and maintenance operations requiring multiple replacement bits
• Use in hand drills and drill presses with standard chucks
• Fabrication and fitting tasks where 8 mm holes are frequently needed

When it may not be suitable

These HSS cylindrical bits are intended for general metalworking; they are not optimized for high‑speed machining of hardened steels or for drilling abrasive materials like masonry, tile or concrete. For very hard alloys or production environments requiring extreme tool life, carbide or coated specialty drill bits may be more appropriate.

Key specifications

• Material: High‑speed steel (HSS)
• Shank type: Cylindrical (straight) shank
• Drill diameter: 8 mm
• Pack quantity: 10 pieces
• Intended application: Metal drilling (general purpose)

How to use

Select an appropriate drill speed and feed for the metal type being worked; lower speeds are generally better for harder steels while higher speeds suit softer non‑ferrous metals. Secure the workpiece and use proper clamping to avoid movement. Mount the cylindrical shank securely in the drill chuck and check alignment before starting. Use cutting fluid or lubricant when drilling steel to reduce heat and prolong bit life. Withdraw the bit periodically to clear chips when drilling deeper holes, and replace worn or damaged bits from the pack as needed.

What to consider before purchase

• Verify that 8 mm hole size matches your project requirements.
• Confirm compatibility of the straight shank with your drill chuck type and capacity.
• Consider material to be drilled and whether HSS is suitable or a coated/carbide option is preferable.
• Assess whether a pack of ten aligns with expected usage frequency and spare needs.

Usage recommendations

For prolonged tool life when drilling steel, use appropriate cutting fluid, moderate drilling speeds, and avoid excessive axial pressure. Store unused bits in a dry, protected container to prevent corrosion and maintain tip geometry.