Patent ID: 7251887

Claim:
A tool for limiting a cut on an impeller having a shaft and vane, the shaft including a bore extending therethrough, the tool comprising: a shield having a sidewall, a top, and an inner cavity, the sidewall having a bottom edge and a top edge, the bottom edge configured to contact the impeller vane, and the top edge joined with the top; and one or more cut openings extending through the shield sidewall to the shield inner cavity, the one or more cut openings formed between the sidewall top and bottom edges and located a predetermined distance away from the sidewall bottom edge; a central opening extending through the shield top to the shield inner cavity; and a rod configured to insert through the central opening to adjustably move axially therein, the rod having at least a first end and a second end, the rod first end adapted to engage the impeller shaft bore, wherein the shield is configured to matingly receive the impeller shaft into the shield inner cavity and position at least a portion of the impeller shaft proximate each cut opening to thereby expose the portion of the impeller shaft for grinding.