Producing square mortises is exacting work. The corner chisel, used after the mortise has been roughed out by hand or with a slot mortiser- which produces round edged mortises- helps square corners easily and precisely.
Made from O-1 Tool Steel. The cutting edge is hardened to Rc 60-62 and ground razor sharp.
Hornbeam handles. Blade length 5-3/4", overall length is 9-5/8".