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CME Tools

CME 8" 3-Jaw Self-Centering (Scroll) Lathe Chuck, Plain (Flat) Back, Two-Piece Reversible Jaws

  • Based on 92 reviews
Condition: New
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Availability: In Stock.
Fulfilled by CME Tools
Arrives Wednesday, May 20
Order within 13 hours and 4 minutes
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Size: 8" 3-Jaw


Features

  • Two-Piece Reversible Jaws; Each jaw is composed of top and bottom "master" jaw; Jaws can be easily reversed for extended clamping range; American Standard Tongue and Groove Style; ISO3442
  • Highly durable; Steel inner mechanisms are quench hardened to increase toughness
  • Plain back; Requires a fitted backing plate to mount to your lathe's spindle; CME fully machined backing plates are available
  • 7 7/8" Body Diameter; 2 9/16" Through-Hole Diameter; For 0.16" to 7.87" Workpiece OD; For 2.56" to 7.87" Workpiece ID
  • 6.5" Registration Diameter; 0.2" Registration Depth; Rear mounting holes are positioned on a 7.09" diameter circle

Brand: CME Tools


Material: Alloy Steel


Item Diameter: 7.88 Inches


Item Weight: 45 Pounds


Compatible Devices: Lathe


Brand Name: CME Tools


Included Components: Lathe Chuck Key, Mounting Bolt (3)


Manufacturer: CME Tools


Manufacturer Part Number: 0803F0


Model Number: 8" 3-Jaw


Unit Count: 1.0 Count


Compatible Devices: Lathe


Thread Size: M10


Capacity: 8 Inches


Lock Type: Manual (Keyed)


Handle Type: keyed


Item Diameter: 7.88 Inches


Item Weight: 45 Pounds


Material Type: Alloy Steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Cheap alternative to far more expensive 6-jaw chucks
Size: 6" 6-Jaw
It was a far better build than I expected. Like many others, I had to disassemble completely, remove a significant amount of grit and crud from the device, reoil, and assemble it. This will not be utilized on a lathe. I am mounting it to a pallet system for my CNC mill.
Reviewed in the United States on April 17, 2025 by Johnny
    • $$$
Size: 6" 6-Jaw
Work good runs true
Reviewed in the United States on January 3, 2026 by Sally
    • FITMENT IS VERY NICE
Size: 6" 4-Jaw
WOULD PURCHASE AGAIN
Reviewed in the United States on January 29, 2026 by GOOSECE
    • Very very poor quality
Size: 8" 6-Jaw
Very poor quality. Upon disassembly there was a lot of metal debris and rust. Jaws do not come together correctly before or after cleaning. The scroll is in very poor condition even after cleaning . I would definitely return this product
Reviewed in the United States on March 7, 2026 by spencer
    • SAN OU / CME 6" 6-jaw plain back lathe chuck - much better than expected
Size: 6" 6-Jaw
I bought this chuck for working with thin-wall cylindrical workpieces hoping the runout would be better than what some reviewers had reported. I received the unit, completely disassembled, de-burred, re-lubricated and re-assembled it, about an hour or two well spent. I left about 0.001 allowance on the backing plate registration boss and indicated the chuck in before tightening the 3 mounting screws. Doing that eliminated about 0.0005 initial runout. In practice runout at 3/8” work diam. is less than 0.001, runout at 3/4” diam. is less than 0.0005 (!), and runout at 1.25” diam. is less than 0.0015. Of course, it depends to a degree on which pinion(s) you use to tighten and how you set the material in the jaws but if I’m willing to spend a couple minutes with an indicator I can get really good results. Overall I’m pleased with this chuck. SAN OU is a large Chinese drill and lathe chuck manufacturer. I have two other chucks made by this company and neither is as good as this one. Due to variability in sample quality I'm sure your mileage could vary from my results. ... show more
Reviewed in the United States on February 4, 2025 by Dogfather
    • Looks great!!
Size: 6" 6-Jaw
Review Image by J. Brillinger
Looks like top quality, so tired of my old junk I've been using. Need to fit my backing plate, will up date.
Reviewed in the United States on February 23, 2024 by J. Brillinger
    • Big upgrade for me
Size: 6" 6-Jaw
Seems to be quality built,considering this chuck replaced a 60 year old 3 jaw chuck this is a huge upgrade for my old sears robuck lathe..lol
Reviewed in the United States on April 12, 2025 by Bruce Johnston Jr
    • Jaw broke
Size: 8" 3-Jaw
When the chuck was fairly new, i was tightening a fitting down and one of the 3 jaws broke, contacted the Co. about the bad casting. they did not help with the problem or replacement of the jaws
Reviewed in the United States on February 7, 2025 by Robert Badger

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