Cut Hole Through Wall With Aluminum Siding

Use a scrap of plywood as a backer for the hole saw s pilot bit and to protect your work surface.

Cut hole through wall with aluminum siding.

I have an ancient dewalt 660 with a circle cutting attachment. 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.

Apply a thick bead of silicone adhesive. Tons of companies make similar tools. Create a paper pattern of the size and shape of hole you wish to cut. If the drill tilts to one side it may bind and jerk.

Like twist bits hole saws chuck right into your drill and will cut through thin gauge sheet metals like aluminum and steel. 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. Hole saws cut bigger holes for large holes a hole saw gets the job done cleanly and quickly. Hold your drill firmly with two hands photo 4 and brace it against your leg if possible.

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. 5 cut along one of the vertical lines with the power sheers. It s basically a smallish router and used all the time for cutting holes in drywall shower walls etc. Here s one that claims to come with a circle cutting attachment for 15.

6 pull the wall cap and duct out of the wall. Measure from the edges of the sheet metal to the point at which you wish to place the hole. Position the pattern on the sheet metal where the hole needs to go and draw a line around it using a permanent marker. 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.