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Steel Ring Mandrel Graduated In USA sizes 1 To 15 By 1/4 Size-No Groove

Part # 143.079 240 In Stock Weight <0.1 lb / <5 g
Current price $21.00

Availability Sold out

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Description

A ring mandrel is the bench tool you size, form, and true rings on, and this hardened steel mandrel is graduated in USA sizes 1 to 15 in 1/4-size increments, with no groove. Otto Frei sourced it after testing multiple mid-priced options and found it to be the best of the group: accurately sized, properly hardened, and produced on modern CNC machinery. It is an excellent choice for beginners, students, and working jewelers who need a dependable mandrel at the bench.

Manufactured in India by the same factory that produces mandrels sold under major jewelry tool brand names, this mandrel is made on German CNC equipment, a detail that speaks directly to the consistency of its graduation marks and the quality of its taper.

Features

  • Graduated in USA ring sizes 1 through 15 in 1/4-size steps
  • No groove, for a clean, uninterrupted taper surface
  • Properly hardened steel for durability and accurate sizing
  • Produced on German CNC machinery for consistent graduation accuracy
  • Recommended for beginners, students, and everyday bench use
  • Selected after testing as the best of the mid-priced ring mandrels

Specifications

Brand
Otto Frei
Part #
143.079
Type
Mandrels & Stakes
Dimensions
12.25 in x 1.25 in x 1.25 in
Material
Hardened steel
Size Range
USA sizes 1–15
Graduation Increment
1/4 size
Groove
None
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.

Reviews · 1

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C
Casidy Swanson
Nice and Accurate

I do contract work for multiple jewelry stores. So far every ring I've sized on this mandrel has been the correct size, so it seems to be accurate!