corner-chisel

If the gouges do not entirely adapt themselves to the contours of your lines, do not trouble, but leave that bit to be done afterward with a sweep of the tool, either a flat gouge, or the corner-chisel used like a knife.

Wood-Carving Design and Workmanship George Jack 1894

Corners that can not be reached with the bent chisels may be finished off with the corner-chisel.

Wood-Carving Design and Workmanship George Jack 1894

No. 15 is a similar tool, but called a "corner grounder," as it is beveled off like a corner-chisel.

Wood-Carving Design and Workmanship George Jack 1894

"corner-chisel"; it is used for getting into difficult corners, and is a most useful tool when used as a knife for delicate edges or curves.

Wood-Carving Design and Workmanship George Jack 1894