Price: $58.95
(as of Dec 04, 2024 06:36:10 UTC - Details)

From the brand

Shars Tool Company

Founded in 1978, Shars Tool Company has been serving the industrial community and machine shops in the USA for over 30 years.

About Us

The hard work, dedication, and loyalty of our employees and customer base have been the engine that has driven our company for these last 30 years. Through consistent upgrades to technology, processes, products, and personnel, we at Shars continue to align your evolving needs with our company's mission to provide total solutions and a high-level customer experience.

Cutting Tool

We carry some of the highest-quality cutting tools in the industry: USA-made end mills, drills, reamers, and taps.

Indexable Cutting

We sell a large selection and vast array of indexable cutting tools for turning, facing, boring, milling, threading, and hole making.

Toolholding

We carry a comprehensive collection of tool holder solutions for many applications: collet chucks, boring heads and drill chucks.

Workholding

Shars Tool carries a comprehensive collection of vises, lathe chuck, and other work-holding solutions for many applications.

Measuring

We stock an extensive line of measuring tools from calipers, bore gages, levels, 123 blocks, parallels, micrometers, indicators, etc.

Abrasives

Your go-to source for a wide array of abrasive tools which includes bench, wheels, diamond, deburring tools, flap discs, files and more

Back plate needs to be machined in order to fit the lathe chuck
Mounting Thread Size T: 1-1/2'' x 8 TPI
Bolt Circle Diameter D2: 4.25"
Shoulder Diameter D1: 3.78"
Flange Thickness B: 0.63''
Reviewer: Electro
Rating: 5.0 out of 5 stars
Title: Fits 5” bolt pattern but may need turned to fit flange.
Review: Bolt pattern fits my 5 “ chuck but flange will need turned. Think this should become a standard.

Reviewer: Adam seymour
Rating: 5.0 out of 5 stars
Title: Works well, need to fit to your chuck
Review: No issues with it. I saw another review saying his didn't fit right out of the box, neither did mine. The first thing in the product description says you have to turn it to fit your chuck. I'm a novice and this was the second thing I machined. Go slow and don't take to much off. Works good

Reviewer: Coho303
Rating: 5.0 out of 5 stars
Title: Worked great on my new vevor 5" chuck
Review: This was exactly what I needed for my 5" chuck. Had to turn down the shoulder on the back to allow for more thread engagement on my lathe, but it did the trick!

Reviewer: Doug Sather in W.Va.
Rating: 5.0 out of 5 stars
Title: Backing plate
Review: The plate was very good quality and I did minimal machining to make it work

Reviewer: Amazon Customer
Rating: 1.0 out of 5 stars
Title: Horrible run out
Review: Really disappointed. I knew it wouldn’t be close to perfect, but run out of .0110 is ridiculous.

Reviewer: Ed Thompson
Rating: 4.0 out of 5 stars
Title: Not exact fit but close
Review: I had a 5" chuck I had put on a mini lathe and wanted to use it on a larger lathe I just got. This back plate was a tiny bit too big to fit in the recessed area of the chuck. It is soft iron and was easy to machine to fit.

Reviewer: Ian Hutchinson
Rating: 5.0 out of 5 stars
Title: This fit my Logan
Review: My original chuck on my 1947 Logan was developing some cracks around the jaw cutouts so I ordered another one but the backplate it came with was the wrong thread size. This one fits perfectly and it just took a little bit of cutting to make it fit spot on the new chuck.

Reviewer: John Weber
Rating: 5.0 out of 5 stars
Title: Improper measuring of runout
Review: The video showing the .011 runout doesn’t affect the chuck when mounted on the back plate. You need to measure the locating pad that centers the chuck, not the outside of the plate. That is irrelevant.The guy writing the bad review doesn’t understand how this works.