Quad Setting Jig for HSS Lathe Tools2015-07-24 · Video Lessons▶A 4-way setup jig for sharpening HSS lathe tools using an 8" grinder. More info at www.ronbrownsbest.com A 4-way setup jig for sharpening HSS lathe tools using an 8" grinder. More info at www.ronbrownsbest.com