Speed up your lathe operations and enjoy the convenience of easy tool set-up with this Quick Change Tool Post Set. This Tool post features a piston type mechanism and comes with five tool holders including: turning holder, knurling/turning holder, parting tool holder, boring bar holder and boring/turning holder. All milled surfaces are hardened and precision ground for repeatable accuracy. Each set comes with a blank T-nut which requires machining to fit your lathe.