Draper HSS Metric Jobber Drill Bit - 2.5 x 55mm - 10 Pack

This Draper HSS drill bit is suitable for drilling holes in steel, cast iron, non-ferrous metals (like aluminum and brass), and plastics.

No, this is a general-purpose HSS drill bit and is not designed for hardened steel. For hardened materials, specialized drill bits are required.

Use the appropriate drill speed for the material, apply steady pressure, and use lubrication when drilling metals to prevent overheating and ensure a clean cut.

'Metric Jobber' refers to the standard length and design of the drill bit, suitable for general-purpose drilling tasks. 'HSS' stands for High-Speed Steel, indicating the material it's made from.

This product is a 10-pack, meaning you receive ten individual drill bits.

Yes, as long as your cordless drill has a chuck that can securely grip a 2.5mm drill bit and offers variable speed control.

Ensure the material surface is clean and free of debris. Use a center punch to create a starting dimple before drilling.

Reduce drilling speed and apply more frequent lubrication (for metal). Do not force the bit; let the cutting edges do the work.

Check if the drill bit is dull or damaged. Ensure you are using the correct speed for the material. For plastics, a slower speed might be beneficial.

This usually indicates excessive force, incorrect speed, or drilling into a material harder than specified. Ensure the bit is properly secured and reduce pressure.