VEVOR 4 Jaw Lathe Chuck, φ200mm Self Centering Chuck with 38.1mm 8 Thread Carrier Plate, 4-200mm Clamping Range with T Key Screws HT300 Material for Wood Metal Lathes

La cremagliera è scheggiata !

I am shocked how precise this chuck is. Once I mounted it on a LO backing plate, I am getting consistently less that .001" of runout, which is remarkable. I fully disassembled, cleaned, and lubed the chuck. The internal components appear to be well-machined and have very close tolerances. The only two jabs I could throw at it is that the back cover plate is made of plastic instead of steel and it applies friction to retain the scroll. You can't tighten it down fully because it will bind the scroll, so you have to leave the screws a little loose. I see this potentially wearing/loosening over time. Second is that the jaws are not numbered on the chuck itself. They are numbered on the "ways" of the jaws, but you have to completely remove the jaws in order to see the numbers. I purchased a CME 8" LO backing plate on Amazon and to my amazement it was a perfect fit for this chuck.

quality