Had a close call with a wall fish in a 1920s house yesterday
I was running a line in an old brick home in Philly, using my usual drill bit and pressure. The tip caught on something solid and the whole bit snapped, almost hitting my hand. The homeowner, who was watching, said 'That's horsehair plaster, you gotta go slow and feel for the lath.' I'd been treating every wall the same for years. Anyone else have a specific method for these old plaster walls?