Cut Hole Through Wall With Aluminum Siding

Open the power shears and slide the bottom blade under the metal siding.

Cut hole through wall with aluminum siding. Tons of companies make similar tools. Hole saws cut bigger holes for large holes a hole saw gets the job done cleanly and quickly. A bimetal hole saw is easiest to use because it ll chew through an occasional nail without dulling and cut cleanly through vinyl or aluminum siding. Here s one that claims to come with a circle cutting attachment for 15.

Hold your drill firmly with two hands photo 4 and brace it against your leg if possible. Like twist bits hole saws chuck right into your drill and will cut through thin gauge sheet metals like aluminum and steel. Sometimes called a spiral saw or rotary cutting tool. If the drill tilts to one side it may bind and jerk.

Assuming you ve got access from below to the joist space you can use tin snips also called aviation snips to cut the siding and a hole saw or reciprocating saw sabre saw or sawzall to cut. Use a scrap of plywood as a backer for the hole saw s pilot bit and to protect your work surface. I have an ancient dewalt 660 with a circle cutting attachment. When using a hole saw to drill the hole in aluminum siding keep the saw slightly tilted to one side to reduce the chances that the hole saw will bind while cutting the hole.

It s basically a smallish router and used all the time for cutting holes in drywall shower walls etc. Don t lock the trigger on. Drill pilot holes through the screw holes on the wall cap and through the mounting block siding and wall. If you notice that the saw binds pull the hole saw away from the siding tilt the hole saw in a different direction and restart drilling the hole.

6 pull the wall cap and duct out of the wall. Apply a thick bead of silicone adhesive. Create a paper pattern of the size and shape of hole you wish to cut. Line the blade up with the drawn line.