*3rd-Party Consultant* held flange with left hand to stabilize. Mine Operator Plant Electrician used reciprocating saw to cut rusted, seized bolts from flange. Saw jumped and its blade cut into the glove of the left thumb of the *3rd-Party Consultant*. On Sep. 11, *3rd-Party Consultant* was examined by orthopedist and told surgery is needed to repair left thumb's extensor tendon.