Tightening three or four bolts on this Walter puller (waltergear.com) compresses the two plates together—one between the strut and the propeller and the other centered on the end of the propeller shaft. Two sizes cover up to 3-inch shafts. This works well on three- or four-bladed props. Once props have more than four blades, though, the leading edge of one blade typically overlaps the trailing edge of its neighbor, so there is not space for the bolts to pass between blades.
If you haven’t seen the Cranchi 60 ST yet, you may not know what you’re missing. There’s a lot of interesting details we discovered on our test. Have a look and see if you agree.
Check out the Cranchi 60 ST here. ▶