Ring Crafters Ring Mandrel - Size 4-8.5

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JDG Ring Crafters Mandrels are a perfect fit for ring makers trying to get started at a lower cost than the stainless steel JDG Pro expanding ring mandrels.

  • Fits Full & Half Size Ring Cores 4-8.5
  • Made from Mild Steel
  • 1/2" dia. shank for use in a collet or drill chuck.
  • $28.95
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  • Weight
    5 oz
  • SKU
    ET-RCM485

Ring Crafters Ring Mandrel - Size 4-8.5

JDG Ring Crafters Mandrels are a perfect fit for ring makers trying to get started at a lower cost than the stainless steel JDG Pro expanding ring mandrels. These mandrels are great for work holding rings and round objects for turning, 1/2 inch shaft sizes for easy lathe mounting.

  • Made from Mild Steel
  • Fits Full & Half Size Ring Cores 4-8.5
  • Mandrel is supplied with a 1/2" dia. shank for use in a collet or drill chuck.
  • Allen key included.
  • Always wipe off the mandrels when not in use.
  • Made in Canada
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Product questions

  • Erin Hathaway
    Nov 16, 2020, 07:55 AM

    Is there a recommended list of drill bit sizes for various ring sizes? Or a set of instructions for rings that will provide more information on what is needed to prepare the blank?

    Administrator
    Nov 16, 2020, 11:08 AM

    Have you viewed the instructional video? Link below:
    https://www.youtube.com/watch?v=X8pwzD0jc4s&feature=youtu.be

    Simply measure the Outside Diameter of the ring core and choose a drill bit that is slightly smaller. Then "fine tune" the hole as shown in the video.

    Ring sizes run from 4 to 17 (that I know of)--in half sizes--each step is minuscule.