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CME Tools

CME 8" 3-Jaw Self-Centering (Scroll) Lathe Chuck, Plain Back

  • Based on 99 reviews
Condition: New
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Availability: In Stock.
Fulfilled by CME Tools
Arrives Tuesday, Oct 13
Order within 4 hours and 59 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

Description

Lathe chucks require the appropriate back plate to mount on your lathe's spindle. Fully-machined back plates can be installed directly onto the lathe chuck with the included mounting bolts without any additional modification. Semi-machined require additional machining of the registration and mounting holes to install onto the lathe chuck. This lathe chuck can be fitted with soft top jaws. Soft jaws can be individually machined for custom applications that require clamping uniquely shaped workpieces. These soft jaws can be directly mounted onto the bottom (master) jaws of this lathe chuck with the included bolts.

Manufacturer: ‎CME Tools


Part Number: ‎0803F0


Item Weight: ‎35 pounds


Item model number: ‎0803F0


Size: ‎8" 3-Jaw


Material: ‎Alloy Steel


Item Package Quantity: ‎1


Cutting Diameter: ‎7.88 inches


Included Components: ‎Lathe Chuck


Assembled Diameter: ‎7.88 inches


Date First Available: January 26, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Oct 13

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

    • 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
    • Perfect for roll out wheel
Size: 8" 3-Jaw
Review Image by Daniel gonzalez
Are use this check for a roll out wheel for pipe welding and it works great and it is a perfect size
Reviewed in the United States on June 8, 2018 by Daniel gonzalez
    • $$$
Size: 6" 6-Jaw
Work good runs true
Reviewed in the United States on January 3, 2026 by Sally
    • Sloppy quality assurance
Size: 6" 6-Jaw
Full of millings when recieved
Reviewed in the United States on August 12, 2026 by GMCM Waller 1968-1993
    • 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
    • FITMENT IS VERY NICE
Size: 6" 4-Jaw
WOULD PURCHASE AGAIN
Reviewed in the United States on January 29, 2026 by GOOSECE
    • 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
    • The chuck I received was much more accurate and of better quality than I expected for the price.
Size: 10" 4-Jaw
Bought for use in my machine shop for a specialized job but found it very accurate and useful for many other jobs.
Reviewed in the United States on November 29, 2023 by Doug Lewis

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