This is my rendition of a golf putter design. It has a 71 degree angle to match shaft angle needed for a putter and a .370" diameter hole to fit most shafts perfectly (I don’t recommend gluing or epoxy it is a super snug fit and will not slip off)
The big hole is 1.68" in diameter and pics up golf balls perfectly
(PRINT WITH 100% INFILL)
this will give to the density needed