The 7" lathes are toys. I'd really recommend going to an 8" or larger. I've had the Harbor Freight 44859 (actually measures 8x14) since 2006 and I've been happy with it. Parts support could be tough though if you ever broke anything on it. Also, you may be able to use a 20% off coupon to buy it. And it fits nicely atop their 44" toolbox too.

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Thanks !

I didn't find the right solution from the internet.
References:
-https://www.chiefdelphi.com/forums/showthread.php?t=159181
- Service Overview Video Examples