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Old 04-09-2013, 12:02 PM   #1
Join Date: Jul 2011
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Rotary Hammers & Dust

I have a pretty basic question about drilling with a rotary hammer:
I need to drill 3 holes of 1 1/2" diameter through a concrete slab of unknown thickness (likely 6-10") and need to surpress or contain all the dust. Trying to K.I.S.S here so plan is:
Plan A: Shop Vac running with a good filter fitted and hose secured to the floor right at drilling location. If that isn't good enough then
Plan B: Apply water at the bit with a garden sprayer to eliminate dust.

The question is If I wet the bit am I just going to end-up with the bit being locked in place by the water/dust slurry?
Any chance that drilling a small pilot hole would let that stuff drain down & keep the hole clear?

And yes I do have enough drill for this. Bosch 11245evs


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Old 04-09-2013, 12:20 PM   #2
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UNLESS your brother-in-law's standing there holding a wtr hose on your drill bit, the dust's so fine you'll have dust at your mother-in-law's house diamond coring's best done wet then you can catch the slurry in a wet/dry vac,,, bosch has a dustmuzzle shroud for your drill - look on ebay search dust shroud,

you can also try OR,,, all hook up to your vac

plan b would be starting the hole then fitting a 1gal plastic jug over the bit & drill muzzle,,, cut a hole in the jug & stick the suction hose into it

personally, i like using the brother-in-law method best 'cause he'll get filthy &, hopefully, leave sooner to shower

VOLILA ! holes drill'd & the louse is gone


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Old 04-09-2013, 12:56 PM   #3
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No in-laws involved, but I like the plastic bucket method. Will try that. Thanks
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