Professional Grade High Carbon Steel Knob Cutter by Koyo Tools 11.5"
Knob Cutters are designed for removing unsightly knobs from trunks and branches without leaving protruding callous when the cut heals They can also be used to further hollow out the cut after a concave branch cutter is used. Be careful not to overdue it with your knob cutter, they can take bigger bites than expected.
11.5" (290mm) Made in Japan by Koyo, a quality tool maker