ON 7-16-02 EE WAS OPERATING A DOUBLE BOOM ROOF BOLTER, HE WAS INSTALLING A ROOF BOLT AND AS HE INSERTED THE ROOF BOLT INTO THE HOLE HE STARTED THE ROTATION AND THE BOLT SPUN CAUSING THE BEARIN G PLATE TO SPIN AROUND AND STRIKE HIM ON THE LOWER ARM JUST ABOVE THE WRIST. HE SUSTAINED A LACERATION THAT REQUIRED EIGHT SUTURES TO CLOSE.