Timeline for How to drill a 0.75" hole in metal
Current License: CC BY-SA 3.0
21 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 23, 2019 at 0:01 | history | tweeted | twitter.com/StackDIY/status/1109243656043663361 | ||
| Mar 17, 2018 at 18:54 | answer | added | user83667 | timeline score: 0 | |
| Mar 17, 2018 at 16:28 | comment | added | Mast | I suspect it's some form of steel and the bit was drilling too fast. Now you have hardened steel. | |
| Mar 17, 2018 at 7:41 | comment | added | Chris H | @Harper I've done this sort of thing with hole saws, step drills, and normal drills, in steel and aluminium. "Will" was perhaps too strong but was meant as a warning, and is almost certainly true until you've got some experience. We have the advantage of 230V power here, but a lot of what I've done on steel has been with a cordless drill - plenty of speed but not enough torque to push too hard | |
| Mar 17, 2018 at 6:12 | answer | added | Thurston | timeline score: 5 | |
| Mar 17, 2018 at 6:03 | comment | added | Guy | To answer some questions: I did not use lubricant - will try that. Yes, borrowed a stronger larger drill. Filing is a good idea, thanks. | |
| Mar 17, 2018 at 6:01 | vote | accept | Guy | ||
| Mar 17, 2018 at 0:44 | answer | added | Josh | timeline score: 2 | |
| Mar 16, 2018 at 22:00 | comment | added | Harper - Reinstate Monica | @ChrisH not if your feeds and speeds are correct. I've cut perfect foot long "chips" by hand with careful attention to pressure and cut speed. When it's cutting right, you know it because it cuts like butter and the bit doesn't get hot. You have to be careful and experienced though. I am skeptical you could hand-bomb a 3/4" drill; you need a magnetic drill press for that, a big one with 240V power. This is what hole saws are for. | |
| Mar 16, 2018 at 22:00 | answer | added | HardScale | timeline score: 0 | |
| Mar 16, 2018 at 21:40 | comment | added | Chris H | What sort of metal is the pole? Aluminium should be easy though the bit will chatter at first, and at some point grab. Steel needs to be cooled and lubricated, and it will take some time, and working your way up through the sizes. | |
| Mar 16, 2018 at 20:23 | comment | added | Samuel | Can you clamp a piece of 2×4 to the pole? I'd do that and drill through it then through the pole. The 2×4 will help keep the bit from wobbling. | |
| Mar 16, 2018 at 20:05 | comment | added | agentp | its getting harder because you are work hardening the metal. You might want to try drilling from the other side since you have a pilot hole. In any case you should be putting a lot of force on it (as in almost all of your weight). If you feel in danger of stalling or breaking the drill get a bigger drill ( you can probably rent a big heavy duty drill or even a portable drill press. ) | |
| Mar 16, 2018 at 19:59 | answer | added | riseagainst | timeline score: 3 | |
| Mar 16, 2018 at 18:49 | answer | added | Ken | timeline score: 4 | |
| Mar 16, 2018 at 17:42 | answer | added | unutbu | timeline score: 5 | |
| Mar 16, 2018 at 17:12 | comment | added | Platinum Goose | Is the bit grabbing and causing the drill to stop? if so use less pressure and a higher drill speed. Is the bit just spinning and not taking off any metal? If so slow the drill speed and use more pressure. That looks like aluminum which should drill really easily, however the bit has a tendency to grab when you're close to going through. | |
| Mar 16, 2018 at 17:08 | answer | added | StayOnTarget | timeline score: 9 | |
| Mar 16, 2018 at 17:07 | comment | added | jsotola | usually, you should start with a small size drill bit and work your way up to the final size. .... try a smaller drill bit, maybe 3/8", then 1/2" .... if the hole is off the mark, then use a file to re-center the hole before you get to the final size drill bit | |
| Mar 16, 2018 at 17:02 | comment | added | Andrew Morton | Did you use any sort of lubricant, such as (clean) motor oil? 0.75" is rather large to be drilling by hand - is the drill rated for it? Are you rated for it if the drill bit snatches? How do you feel about filing the hole instead of drilling it? | |
| Mar 16, 2018 at 16:32 | history | asked | Guy | CC BY-SA 3.0 |