A tree shear head assembly is comprised of a connecting frame which provides connecting sections, one of which is angulated at a specific angle to connect to a boom of a motorized vehicle. The connecting frame has a shear structure secured to a lower connecting wall thereof and additional connecting sections for attachment of at least one of a clamping grapple and a tree trunk support fork secured to a support column. The shear structure has a blade which co-acts with a channel formed between gripping plates to immovably arrest a tree trunk being cut by the blade with a slicing action to prevent shattering of the trunk and damage to the tree fibers thereby achieving a clean cut. Different combinations of the shear head assembly with the clamping grapple and/or the tree support fork are easily adapted in combination with the tree shear head assembly.
