In this video we are making our BIGGEST shop made boring bar! We have a job coming up and none of our boring bars are big enough so we are going to make one. For making this big boring bar we are using a piece of 150mm diameter old ram shaft material off a Hitachi EX1900 excavator cylinder. We show the step by step process starting with turning the OD down to size on the lathe and then lots of milling machine action. The finished boring bar is 125mm (5“ inch) diameter and 1100mm long with a massive 900mm working length! Check out this big boring bar being put to the test! https://www.youtube.com/watch?v=Uxzq7edfX2U In this video we are using: - Everising H-360HA horizontal bandsaw - Hafco TM-26120G Lathe - BM-63VE Milling machine Join our channel: We upload new videos every Friday at 5pm AEST! If you want to see more of our videos click LIKE & SUBSCRIBE! You can subscribe to our channel here: https://bit.ly/ceesubscribe Join our Patreon community: https://www.patreon.com/cuttingedgeengineering To see more follow us on online here: Instagram https://instagram.com/cutting_edge_engineering Facebook https://www.facebook.com/cuttingedgeengineeringaustralia/ Official CEE Merch shop: https://www.ceeshop.com.au/ Check out our AMAZON store and explore our favourite finds that we use in the workshop: https://www.amazon.com/shop/cuttingedgeengineeringaustralia About Us: Our channel is all about showing you real life machining work from our workshop on the Gold Coast Australia. We specialize in manual machining, hydraulic repairs and heavy fabrication for the earth moving, mining and civil construction industries. So if you're a machinist that wants to see some big gear in action be sure to subscribe to our channel right now. We upload new videos every week that show lathe machining, milling, welding and all the good stuff that comes from a machining workshop. If that sounds like something that you would enjoy seeing, then make sure to join us by subscribing! Music: https://www.epidemicsound.com/referral/rccrvr/ Song: Paradisio by Sum Wave #australianmachinist #machineshop #machinist