WebDec 1, 2024 · Mark the point on the wall where you want to drill using a soft pencil with a small dot or cross. 2 Drill a pilot hole. Place your drill on the mark and drill briefly, using a … WebSep 11, 2006 · Spec'd it out -very- carefully, cut out a square with my minimum duty circular saw, maybe 1.25" deep. Then I banged and banged with a big hammer/maul until it fell out. Almost -perfectly- clean, no sizable cracks, tiny chip or 2. I was much relieved. Show Quoted Text They've got better concrete cutting tools than what I used at the rental places.
How to Drill into Concrete (DIYer
Mark the places you want to cut on the concrete slab either using chalk line (good for long, straight edges) or chalk. Apply the line as thick as possible. You’ll ideally run a trickle of water over the concrete as you cut in order to keep airborne dust at a minimum, and you don’t want the line to disappear. See more Choose the type of blade you prefer to work with for the job: dry-cutting diamond or wet-cutting diamond. The former works with a circular sawor handheld cut-off saw, although you will want … See more Prepare the workspace to keep concrete dust from entering your home. If working in a basement or garage, tape drop cloths to any doors; if outside, ensure that all nearby windows are closed. If close to any air intakes, tape a … See more If possible, position a garden hose to distribute a trickle of water directly over where you will make the cut. When working on a flat, horizontal project like a patioslab, extend the … See more Take every personal safetyprecaution necessary: Don your heavy clothes, shin guards, knee pads, and steel-toed boots, plus protection for your eyes, ears, and face. Always wear a … See more WebNov 4, 2007 · I have used long 1/2 inch rotary hammer drill bits to drill a series of holes and then a hammer and chisel to remove what's left. I first made a plywood template marking the large circle. I then used a wood bit to drill a series of holes in the template closely spaced. I bolted the template to the concrete wall and hammer drilled each hole. book black boy
4 Best Ways to Cut Concrete - Handyman
WebApr 9, 2024 · 10. To make a clean, precise hole in concrete, use a diamond core bit. Your small, cheap drill probably does not have sufficient torque and runs too fast for a core bit … Webrequired diameter. Larger openings are cut with a circular saw or a concrete chain saw with plunge cutting capabilities. Because a circular saw makes a longer cut on the top of the slab than on the bottom, small cores drilled at the corners can be used to help avoid over-cutting the opening when a circular saw is used. WebJun 24, 2024 · If your cut doesn’t need to be exact, use a cold chisel and hand sledge to cut the concrete. Score the length of the cut three or four times with the chisel. A circular saw with a masonry blade can also be used to either score or completely cut through the block. Don’t force a blade into a cut. book black box