# Good 5/8" and 16mm cobalt drill bits recommendation

**URL:** <https://fireball.discourse.group/t/good-5-8-and-16mm-cobalt-drill-bits-recommendation/4537>\
**Category:** General\
**Created:** [November 3, 2026, 4:30pm UTC](https://fireball.discourse.group/t/good-5-8-and-16mm-cobalt-drill-bits-recommendation/4537 "2026-11-03T16:30:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Lucca](https://avatars.discourse-cdn.com/v4/letter/l/dc4da7/32.png) [@Lucca](https://fireball.discourse.group/u/Lucca)\
**Post date:** [November 3, 2026, 4:30pm UTC](https://fireball.discourse.group/t/good-5-8-and-16mm-cobalt-drill-bits-recommendation/4537/1 "2026-11-03T16:30:43Z")

</div>

Hello everybody.

Would anyone help me with a link/brand to buy a good 5/8" and 16mm cobalt drill bits? I have a friend flying to the US soon and he’ll bring some stuff over.

Need them to enlarge a few laser cut holes one a 1/2" thick mild steel table.

Thanks in advance