(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 7 of 7

Thread: I Discovered A Great Way To Go Through Concrete Walls (Air Chisel)

  1. #1
    DIY Member drizler's Avatar
    Join Date
    Feb 2009
    Location
    New York
    Posts
    36

    Default I Discovered A Great Way To Go Through Concrete Walls (Air Chisel)

    I needed to make a 6" hole through a poured concrete foundation in my basement. I got a nice new makita hammer drill masonary bit for my drill and found out how ugly it could be. Forget that. A real masonary drill costs too much and I didn't want to rent one so I thought what about my hand held air chisel. It is a cheap HF job I used a few times for cutting panels or drum tops off . Thats about all I thought it was good for. Then I tried it on the 15 year old cement. Wow does it cut. Of course it is still a 6 pack job and one hell of a mess but its a lot easier to use than a drill. Strangely it doesn't even dull the Chinese cheapo tips at all. What's best is that there is no need to lean hard on the gun and it doesn't take a monster air compressor either. Just put a little pressure on it and let the spring do the work. I bet I paid a whole $15 for the thing. Incredible. The only thing I wish I had was a longer set of Ajax chisels.

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,191
    Blog Entries
    1

    Default

    Or you can get a core driller out there.
    They use diamond tipped drills, and they do a clean core without any dust.

    They keep the dust down with water, which also cools the bit.

    It will slice right through rebar.

  3. #3
    DIY Member drizler's Avatar
    Join Date
    Feb 2009
    Location
    New York
    Posts
    36

    Default Ah Yes But The Price $$$$$$

    Quote Originally Posted by Terry View Post
    Or you can get a core driller out there.
    They use diamond tipped drills, and they do a clean core without any dust.

    They keep the dust down with water, which also cools the bit.

    It will slice right through rebar.
    Ah yes very true Terry, but as always its that on little thing, $$$$$$$$. For you pros it is a gotta have item but for us once every 5 year slobs, well ya know.........

  4. #4
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,605

    Default chisel

    The problem with ANY chisel, and I have used my air chisel a couple of times but it is usually too "light" for major drilling, is that the deeper you go the narrower the hole gets.

  5. #5
    DIY Member export!'s Avatar
    Join Date
    Oct 2009
    Location
    Ontario, Canada
    Posts
    90

    Default

    Ahh.... so true with so many things in life.

  6. #6
    Extreme DIY Homeowner Scuba_Dave's Avatar
    Join Date
    Jan 2009
    Location
    South of Boston, MA
    Posts
    885

    Default

    I used a combination of a sledgehammer, cement drill bits/hammer drill & air chisel to get a 3-4" hole thru for drainage
    It was from a crawl space under my sunroom out to my drainage pipe
    DIY Handyman (not 4 hire)
    I have enough to do to my own house

  7. #7
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,191
    Blog Entries
    1

    Default

    I used a combination of a sledgehammer, cement drill bits/hammer drill & air chisel to get a 3-4" hole thru for drainage
    It was from a crawl space under my sunroom out to my drainage pipe
    When I was doing new construction in my 20's, and I needed a hole big enough for a 3" waste line through the 8" foundations, I would only use a sledgehammer.
    Five blows with a sledge before the back side would pop out.
    And then a few more to make it large enough for the pipe.
    These were fairly green walls.

    If the walls have cured, then I like coring them.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •