As so often happens, Detroit Catcher Bill Freehan traces his recent hitting binge to a bat—which is nothing new, except that the bat was held by Tom McCraw of the White Sox. Swinging at a pitch, McCraw accidentally hit Freehan on the head on May 13 and, quicker than Clark Kent can change into Superman, the futile Tiger with the .232 average was transformed into the .300 hitter he had been in 1964. He began to hit for distance, too, and one of his homers last week seemed to have special significance. It came the day after Manager Charley Dressen had been hospitalized with his second heart attack in 13 months. The Tigers were glum and, playing under Coach Bob Swift, were trailing New York 2-0 in the fifth inning of a game that seemed to already be a lost cause. Then Freehan hit his homer, and the Tigers, who had had only three in their previous 11 games, suddenly came alive, hit two more home runs and stopped the again-dangerous Yankees 7-2. Freehan kept swinging away and hit homers in each of the next two games, and his aroused teammates added four more before the week came to a close. After McCraw tapped him on the head Freehan hit .379, and the Tigers moved past Baltimore into second place. Freehan is too modest to say that his splurge inspired the Tigers, but it is just possible that his teammates are afraid to stop hitting, lest Freehan will try to end their slumps with the sure-shot remedy that worked so well on him.