This custom made bit is used after a 1-3/8" diameter pilot hole is drilled into the host tree. The TAB bit will create a space for the threaded section of the inner arm of the TAB, as well as a 3" diameter space for the boss to be securely anchored into the sapwood of the tree.
Only installing an HL TAB or two? Ask us about our Pilot Bit Combo rental program!
