it's monday......

[Fulthrotl]

immaculate house in newport beach.... putting in home theatre, they
want it cut in flush next to the fireplace.... sure, mr. electrician, there
is a void 2 feet deep next to the fireplace..... should be a piece of cake...
cut it, frame it, box it in..... easy day.........:smile::smile:

and there was a 2' deep void.... eventually...... behind the slump stone face
brick, and the 8" concrete block wall, that was, yes thank you, poured......

now, the house is immaculate, the hearth for the fireplace is marble, and
the fireplace itself is cleaner than my car hood.... all the little river rocks
covering the bottom of the hearth.... they had been tumbled in a lapadary
tumber until they looked like they were wet..... and here comes little me
with my hilti and a shop vac..... :grin: it was as clean when i left as when
i got there.... didn't even get dust on those little polished rocks or anything.

 

[480sparky]

Who else uses a Hilti to cut drywall? :-?

 

[ShockedOneinAZsun]

it's monday......

Who else uses a Hilti to cut drywall? :-?

When I was new, I used to use the same tool I used to drive my ground rods with to cut drywall! The Hilti appears to make a much cleaner cut.

 

[Karl H]

I want to laugh but I'm sure your not,so I'm just going to quietly snicker.

 

[Cow]

Yikes! Hopefully this wasn't a bid....

 

[Fulthrotl]

Who else uses a Hilti to cut drywall? :-?

sigh. you're new, right? the drywall was cut exactly on the opening size
needed, and when removed, displayed the block wall in all it's glory. now,
the block is being removed by a series of 3/4" holes drilled every 2", with
a chisel used to break out the concrete between the holes.... so, the
hilti bit chewed the edge of the drywall.... 'cause the center of the bit
needed to be on the cut line, so the opening in the block wall will be large
enough.

when the cutout was removed, in one piece, thank you, the drywall edge
was then cut back to clean it up.

that was not done using a hilti tool, however. instead, a fein multi tool
was used to make a nice clean edge. which it does well.

and yes, it was hourly. momma may have raised a klutz, but she didn't
raise a fool.

 

[480sparky]

sigh. you're new, right? ..........

Um, no, not really.
I was just making light of your plight.

 

[mxslick]

Are they going to recess an equipment rack in that opening? Or just do custom shelves? Hope they have some way to ventilate the equipment..

Running into stuff like this makes me glad I don't do resi work.

 

[gndrod]

sigh. you're new, right? the drywall was cut exactly on the opening size
needed, and when removed, displayed the block wall in all it's glory. now,
the block is being removed by a series of 3/4" holes drilled every 2", with
a chisel used to break out the concrete between the holes.... so, the
hilti bit chewed the edge of the drywall.... 'cause the center of the bit
needed to be on the cut line, so the opening in the block wall will be large
enough.

when the cutout was removed, in one piece, thank you, the drywall edge
was then cut back to clean it up.

that was not done using a hilti tool, however. instead, a fein multi tool
was used to make a nice clean edge. which it does well.

and yes, it was hourly. momma may have raised a klutz, but she didn't
raise a fool.

Depending on the cinderblock wall structure, you might run into rebar also. A masonry saw will cut through to the steel but it might fry the blade. It's been years ago for me, so there may be cutting wheels that can do a better job. From the looks of the pic, getting through the slump and block may be a challenge for neatness. rbj

 

[byourdesky]

Running into stuff like this makes me glad I don't do resi work.

I agree

 

[LarryFine]

now, the block is being removed by a series of 3/4" holes drilled every 2", with
a chisel used to break out the concrete between the holes.... so, the hilti bit chewed the edge of the drywall.... 'cause the center of the bit needed to be on the cut line, so the opening in the block wall will be large enough.

I recommend getting a flat-chisel bit. Start with drilling holes within the field of the cutout to remove material, then set the rotary hammer on hammer-only mode and cut your straight edges last.

A couple of years ago, a home-theater company that subs me some work needed two 2-gang-wide A/V touch-pad controllers installed in the 4"-thick rough-concrete-surfaced exterior of a large home.

The wires were hanging out of a 1/2" hole previously drilled in the exterior. I had to cut the holes to accept 2-gang old-work boxes, and the panels only had about a 1/4" lip outside the box outlines.

I used my Bosch rotary hammer with a round bit to remove most of the material, and the flat chisel bit to clean up the edges. It may seem to large and bulky, but in the hands of an artist...

Let's just say that both the LV installer and the homeowners were very please and, quite frankly, amazed at how good the finished installation looked. There were absolutely no visible chips in the walls.