Hole-saw-arbor Snap-back 6l

For use with Lenox bi-metal hole saws.No. 1779801: Use for hole saws 1/2" to 1-3/16", 1/4" hex shankNo. 1779802: Use for hole saws 9/16" to 1-1/4-6 1/2" hex shapeNo. 1779803: Use for hole saws 9/16" to 1-3/16", 1/4" round shankNo. 1779804: Use for hole saws 9/16" to 1-3/16", 3/8" hex shankNo. 1779805: Use for hole saws 1-1/4" to 6", 3/8" hex shankNo. 1779806: Use for hole saws 1-5/8" to 6", 3/8" hex; Advantage ejector arbor makes removal of material from the inside of a hole saw much easier