EE WAS USING AN ALLEN WRENCH. HE WAS REMOVING A WEAR PLATE FROM INSIDE THE #2 SLOPE, SLURRY PUMP. THE WRENCH SLIPPED AND EE S HAND STRUCK THE EDGE OF THE VOLUTE LINER ON THE PUMP. THE EDGE OF THE LINER WAS EXTREMELY SHARP AND IT CUT THROUGHHIS GLOVE AND CAUSED A LACERATION TO HIS RIGHT THUMB. EE RECEIVED STITICHES.