Answer
May 22, 2021 - 03:25 PM
It depends on what brand of spurs you choose in the kit. They're all very close, and "practically" the same but they're not identical. All should be sufficient for conifer trees, including Douglas fir trees.
Climb Right @ 2-5/8"
Buckingham @ 2-13/16"
Klein @ 2-3/4"