"Tough masonry and mortar soon takes the edge off this chisel although |I should imagine it would work well on plaster and softer blocks. I used an angle grinder to cut an outline and then used the chisel to complete the channel. It's a dusty job to say the least but the end result was more than satisfactory. Also bought the 20mm skirting board version to channel behind some rafters.
Note that you can sharpen the chisel with a file or grinder."
3 of 4 people found this review helpful.
