But you must remember to drill out the stakes first or the tool will be of little use.
BTW- many of us have made bearing retainer tools. A flat strap of steel 1" wide, 24" long +/-. Near the center drill 2 holes spaced to match 2 retainer notches. Put a small, short bolt in each hole, secured by a nut with a few threads of the bolts sticking out.. Mesh the 2 bolts into the retainer, turn the strap piece of cake.