AFTER COMPLETING REPAIR OF THE 2570 DRAGLINE BOOM FROM THE MAN-BASKET, EE ASKED TO BE LOWERED BACK TO THE GROUND. THE MAN-BASKET OPERATOR MISTAKENLY GRABBED & PULLED THE SWING LEVER AS OPPOSED TO THE RETRACT LEVER. EE WAS HOLDING THE TOP OF THE MAN-BASKET WITH BOTH HANDS. WHEN IT SWUNG, IT PINCHED HIS LEFT INDEX FINGER AGAINST A PIPE ON THE BOOM & THE MAN-BASKET, LACERATING IT.