LS Exhaust Gasket O-Ring Cutting Tool

Never fight sharp, gnarly exhaust gaskets again. This bolt-on, manual groove cutter brings machine-shop precision to your garage so you can cut O-ring grooves on LS cylinder heads quickly, accurately, and repeatably — saving teardown, shipping, and shop labor. Quick pitch: Bolt the jig to your exhaust flange holes, rotate the inner cutter with a 3/4" socket and ratchet, check depth often, and walk away with a perfect O-ring groove sized for reusable Viton O-rings. What it does / Why you want it Replaces expensive machine-shop work for LS exhaust O-ring grooves. Makes a repeatable, clean groove so gaskets seal properly and last longer. Hand-operated, durable billet construction — keep it in your toolbox and use it on every LS head you or your friends have. How it works (brief) Bolt the outer jig to your head using the exhaust flange bolt holes (do not force or modify heads beyond instructions). Install the inner rotating cutter, apply lubricant through the oil hole, and ro