EE had been tightening & loosening bolts and nuts with an air impact tool almost all week. EE complains of swelling that began Monday 2/14/05 and the numbness in his right thumb began on 2/17/05. EE was sent to the company clinic on 2/17. He received a strain to his right hand/thumb. He is to wear a splint. EE HAD CARPAL TUNNEL SURGERY 4/4/05 (RIGHT HAND).