Cobalt Drill Bit Set 12mm 5pc HSS 5% Co Twist Drills for Metal

A 12mm drill bit set for anyone who regularly needs the same hole size without sorting through mixed loose bits. Supplied as five matching HSS twist drills with a 5% cobalt specification, it gives you a straightforward way to keep reliable 12mm spares ready to hand.

Used for repeat drilling work where the same size comes up more than once, this set suits workshop use, site work, fitting jobs, general trade tasks and DIY repairs. It is especially useful when working through multiple holes in one session, as you can keep one bit in the drill and have others ready as replacements. For maintenance work, installation jobs or bench work where consistency matters, having five identical twist drills helps keep the job moving with less searching for the right size.

The set includes five 12mm cobalt drill bits, all matching in size, which also makes them easy to split between toolboxes, keep with different drills or store as replacements for ongoing work. The HSS construction and 5% cobalt spec make them a practical step up for buyers who want more than a basic drill bit in their kit, while the matching format helps keep repeat jobs organised. For anyone who gets through common drill sizes regularly, keeping spare 12mm bits close to hand can save time and help avoid unnecessary interruptions when one goes missing or needs changing during a job.

Drill bit set specifications

• Contents: 5-piece set of matching twist drill bits.
• Size: 12mm throughout for repeated same-size drilling.
• Material: HSS drill bits with 5% cobalt specification.

Using HSS cobalt drill bits

• Application: Useful for workshop use, site work, trade jobs and DIY repairs.
• Handling: Matching bits are handy to keep as spares, replacements or split between toolboxes.

A practical choice when 12mm drilling comes up regularly.