So this Sumore 7x14 lathe had a 3 inch 3 jaw chuck with I upgraded to a 4 inch 3 jaw chuck with 1 inch bore. Here is the link to this products,

VEVOR 3-Jaw Lathe Chuck,K11-100 Metal Lathe Chuck,Self-Centering 3 Jaw
from amazon

The second part needed for the chuck upgrade is the and or ( chuck flange ) backing plate to adapted larger chuck to smaller machine . The backing inner bore is 80mm which steps up to 100mm .

Sold by Aliepress 80mm to 100mm Mini Lathe Convertible Flange，3 Jaw Chuck Transfer to 4 Jaw Chuck Flange . Now I can make some cool stuff.

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