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/diy/ - Do It Yourself


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2894860 No.2894860 [Reply] [Original]

I need to open up little ~1" holes in metal to get a recip blade started in it without cutting from the edge. Is a hole saw or a step bit being going to be faster/preferable for some other reason, or is there something else even better for this, that maybe doesn't cut a whole circle when I really just need an oval slot?

>> No.2894868

>>2894860
A normal twist drill?

>> No.2894942

step bit wont last long but

>> No.2894943

>>2894860
How thick of metal? If it's very thin, a step bit would probably be faster than a hole saw. You'll have to drill a pilot for the hole saw anyways, or clamp a guide to your material. If it's thicker material the hole saw will start to shine more. Also how many of these do you need to do?

>> No.2895822

>>2894860
depending on the metal thickness:
- oscillating tool with metal-cutting blade
- plunge cut saw
- angle grinder

>> No.2896014

>>2895822
- oxy acetylene with cutting attachment

>> No.2896034

hole saw is easier and faster
get a 7/8 carbide saw and go slow with it

usually pop out a hole in 4-5 minutes. could make 100 holes without it getting dull. sheet metal ofcs