this post was submitted on 23 Feb 2024
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DIY

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The icon is a little different to what I've seen on others and I don't know how to tell otherwise.

Thanks!

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[–] [email protected] 11 points 9 months ago* (last edited 9 months ago) (3 children)

The hammering most of these 1/2 drill “hammer drills” perform isn’t the same percussive hammering as real sds hammer drills though.

Great for putting a hole in brick or mortar, but trying to go into actual concrete will be a lesson in futility.

[–] [email protected] 4 points 9 months ago* (last edited 9 months ago) (3 children)

I'll be putting a hole all the way through breeze block. Would it be ok?

Edit: km trying to avoid the expense of an SDS if I can as I only have 1 hole to do.

[–] [email protected] 7 points 9 months ago (1 children)

You'll be ok.

I'm assuming you're using a masonry bit so I'm gonna give you another tip:

LET THE BIT/DRILL COOL DOWN. You might burn the drill out and you WILL dull the bit. You don't need to drill through in one shot...drill for 20-30 seconds and wait a few minutes. It's slow but worth it.

[–] [email protected] 3 points 9 months ago (1 children)

Masonry bits are carbide tipped and don't dull, they just break. Heat is not an issue and the bit doesn't even function by cutting. It's a downward 45 angle in order to chip as it rotates. There's no cutting force from the rotation.

[–] [email protected] 7 points 9 months ago* (last edited 9 months ago)

Good masonry bits are carbide-tipped but not all of them. I used those with our sls drill but I stuck to the cheaper ones for anything under 1/2"

Perhaps dull was the wrong word but the tips do wear out. You wind up with a useless flat stub at the end that won't push through anything

[–] [email protected] 3 points 9 months ago

If you’ve got the stuff on hand it wouldn’t hurt to try, it could just take an ungodly long time.

[–] [email protected] 2 points 9 months ago

You'll be fine. I've found applying pressure for about ten seconds, then clearing the hole, rinse and repeat, works well when using a "hammer drill" like this. Use speed 2.

Also, use a HEPA filter equipped vacuum to capture the dust as it's created, and wear an N95 dust mask while drilling. Silicosis is no joke

[–] [email protected] 1 points 9 months ago (1 children)

Eh, drilling small holes in concrete is fine. If I need to throw a quick tapcon or something in a slab I'll just use my 1/2" chuck cordless hammer drill. You're absolutely right about larger holes though. What a pain. And don't talk to me about hitting rebar lol