Options for drilling 2.5" hole at angle in CBS exterior wall?
I'm researching doing a DIY install of a mini-split as for the garage. To pass the refrigerant lines and condensation tube through I need to drill a clean 2.5" hole at a recommended 15 degree down angle through an exterior wall. The wall is concrete block stucco (CBS) 8" thick. I have a cordless hammer drill and a high torque corded non-hammer drill. Can I accomplish this with a diamond hole bit on my corded drill or at this diameter and thickness + angle I'd need specialized tools? My plan was to try to put a pilot hole through the wall at the angle I need with my hammer drill and a masonry bit the diameter of the pilot bit in the hole saw. After, from the outside side, drill inward halfway following the pilot hole path. Last, I'd switch to the inside side, follow the pilot hole, and eventually meet where I stopped on the other side--hopefully leaving me with a clean hole. Any thoughts, ideas, considerations? submitted by /u/invalidTypecast [link] [comments]
I'm researching doing a DIY install of a mini-split as for the garage. To pass the refrigerant lines and condensation tube through I need to drill a clean 2.5" hole at a recommended 15 degree down angle through an exterior wall. The wall is concrete block stucco (CBS) 8" thick. I have a cordless hammer drill and a high torque corded non-hammer drill.
Can I accomplish this with a diamond hole bit on my corded drill or at this diameter and thickness + angle I'd need specialized tools?
My plan was to try to put a pilot hole through the wall at the angle I need with my hammer drill and a masonry bit the diameter of the pilot bit in the hole saw. After, from the outside side, drill inward halfway following the pilot hole path. Last, I'd switch to the inside side, follow the pilot hole, and eventually meet where I stopped on the other side--hopefully leaving me with a clean hole.
Any thoughts, ideas, considerations?
[link] [comments]
