BOLTER OPERATOR WAS BOLTING ROOF IN #2 ENTRY ON 1ST RT SECTION. TOP WAS REAL HARD AND BIT TORE UP. HE WAS KNOCKING THE BIT OFF THE DRILL STEEL TO CHANGE IT WHEN HE STRUCK HIS LEFT INDEX FINGE R BETWEEN BOLTER AND DRILL STEEL BRUISING FINGER. HE WAS OFF 2 DAYS.