Making a GIANT Non Return Valve (With Shop Made MONSTER Tools!)

In today's video we're making the largest non return valve we've ever attempted, and we'll be using all the biggest tools in the shop to get the job done! We'll be using: 115mm HTS Drill 95mm Boring Bar "The Beast" The Hulk (Our Spanish Megabore) HAL (Our Colchester Alpha CNC) It's a longer than usual episode. Enjoy. ABOUT HAL HEAVY DUTY We're a real life machine shop for a 60 year old drilling company located in Central Queensland, Australia. Our job is to keep rigs running in the field - fixing all the stuff drillers break and creating all the custom gear they need to get the job done. We run two CNC's, manual repair lathes, a few mills and a big green Megabore Lathe we call "THE HULK"... and are constantly having to make weird and wonderful tools for odd (usually oversize) jobs. We release our weekly video at 1pm Friday (AEST), so be sure to subscribe if you want to see stuff you really won't find anywhere else.