Tired of coolant limitations on your manual milling machine? We were too, so we decided to ditch the limitations and made a game-changing through-spindle coolant drawbar bolt for our Zayer milling machine! We'll take you step-by-step through the process and show you the first test to see how it works! We’ll machine the custom bolt on the lathe, including threading and that all-important deep hole drilling. Then, it's over to the milling machine to mill the hex pattern and the drill the crucial through-hole for coolant flow. We also show making the rotary union joint that allows the bolt to spin freely while delivering coolant to the tool holder. Finally, we assemble the drawbar bolt and put it to the test, showcasing the upgraded coolant flow in all its glory. This is a DIY project we’ve never seen before, and it’s definitely going to take our milling game to a whole new level!

In this video we are using:
- Hafco TM-1740G Centre lathe
- Hafco BM-63VE Milling machine

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About Us:
We're a down-to-earth real life machining and fabrication workshop in Australia. We specialise in helping business in mining and earthmoving to keep their machines running smoothly. We love working on broken parts and the bigger the better! We upload new videos every week showcasing machining, welding, line boring, honing and all the other awesome stuff that goes down in our workshop. Learn how we tackle different projects and see the satisfaction of creating something useful. Subscribe to stay updated on our latest jobs and projects! Follow us on Patreon for even more content and behind-the-scenes glimpses or find us on Tiktok, Facebook and Instagram for a chance to connect with us.

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