Newbie question-Is there such a thing a short climbing spikes(say, 1/4 or 1/2") that won't hurt the tree?
Lineman spikes sre used for poles or tightbark trees like beech.. With a pine gaff your feet wont even touch a beech and itll hurt your feet and legs and be very hard to pluck out.
But the short spur will still gouge up the tree. Itll probably recover but there is a risk.
Spikes are for removals.
Ropes / equipment for pruning.
Short answer: nope.
X2 on clearcut's answer.
If your plan is lift pruning crop trees, then spurs aren't the solution.
Locally it's ladder and loppers / hand saw stuff. You can throw a safety chain around the top of the ladder, and even use strap on steps to reach higher. So while they may scuff up the bark, they don't penetrate it and damage the growing area underneath.
So with a ~12 ft ladder, a strap on step above that, you are able to prune up over 20+ ft. Wrap your spare leg around the tree. Great way to keep fit.
Bowhunters use the strap on ladders.. Here we call them climbing sticks.
Thank you to all for your responses. Will be using ianab's technique-looks simple & good.
Climbing spikes are generally not permitted unless the tree is to be removed as previously stated. Climbing spikes damage the trees and leave entry points for insects and diseases such as the devastating oak wilt.
That's also what a prusic is for. Even I can tie one of them, and I can't tie but about 4 knots and that's the only tree knot that I know about!