3/8" square blade is precision-ground with a 35° bevel on each face; made of A2 tool steel and hardened to Rc60
Can be used on its own or with 2" tall anodized aluminum guide block (included) for greater accuracy; two imbedded rare-earth magnets hold chisel squarely in place while outside edges of block register squarely against routed pocket
A tap on the chisel cuts corner square and flush with routed edges
