Home

Explore

View Cart

Deals

Saved

Suggested searches

Plant-based protein powders
Vegan leather handbags
Bedroom decor
Waterproof jackets
Hoodies

Learn more about how we use your data to personalize your experience and ads. Recommendations are for informational purposes only.

OF

Otto Frei

True Size Ring Mandrels - Otto Frei

True Size Ring Mandrels - Otto Frei

Otto Frei

True Size Ring Mandrels

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$41.95

Color

Black

Quantity

Product description loading

Product description loading

This is the product description text that will appear here.

Shop is the next step on our mission to make commerce better for everyone.

Start selling

For brands

For creators

Build your store

Information

Shop Pay

Help center

Social

X (Twitter)

Instagram

Legal

Terms of Service

Privacy Policy

Your Privacy Choices

Powered by

|

Start selling for free

Language

© Shopify Inc. 2026

Quantity

1

Description

True Size Ring Mandrels are precision-calibrated tools designed to work seamlessly with the True Size Precision ring sizing system, eliminating costly sizing errors between the sales counter and the jeweler's bench. Manufactured by Ikohe — ...

Delivery & Returns

Returns accepted within 30 days

Otto Frei

Otto Frei

4.8 (1.3K)

More from Otto Frei

KONOS Master Jewelers 110 Piece Bur Kit - Otto Frei

KONOS Master Jewelers 110 Piece Bur Kit

Oval Bracelet Mandrel With Tang 8-1/2" (210mm) Long - Otto Frei

Oval Tapered Bracelet Mandrel With Tang 8-1/2""

14K,18K & 19K Otto Frei White Gold Plumb Solders - Otto Frei

14K,18K & 19K Otto Frei White Gold Plumb Solders

Picasso Blue Rouge Platinum Polishing Compound-150 Gram Bar - Otto Frei

Picasso Blue Rouge Platinum Polishing Compound-150 Gram Bar

Blue Max Treated Fine Muslin Buffs - Otto Frei

Blue Max Treated Fine Muslin Buffs

Sterling Silver Round Tube Bezel with Seat - Otto Frei

Sterling Silver Round Tube Bezel with Seat

(10)

Glardon-Vallorbe Spherical Shape-Round-Beading Tools-Sizes 00 to 22 - Otto Frei

Glardon-Vallorbe Spherical Shape-Round-Beading Tools-Sizes 00 to 22

Round Faceted Lab-Created Ruby - Otto Frei

Round Faceted Lab-Created Ruby

(3)

Packs of 6-Busch Fig. 1 Ball Burs 0.25mm-3.70mm - Otto Frei

Packs of 6-Busch Fig. 1 Ball Burs 0.25mm-3.70mm

14KY & 14KW Round Shiny Bead with Two Holes - Otto Frei

Gold Round Shiny Bead with Two Holes

Otto Frei Swiss Jewelers Saw Blades-Sold by Pack of 12 - Otto Frei

Otto Frei Swiss Jewelers Saw Blades-Sold by Pack of 12

(4)

Super Pike Swiss Jewelers Saw Blades - Otto Frei

Super Pike Swiss Jewelers Saw Blades

(5)

Related to Otto Frei

Micro-Mark

Exclusive offer available

Basic Color Paint Set

14% off

Basic Color Water-Based Acrylic Paint Set by Micro-Mark

(10)

Micro-Mark White Acrylic Primer

Micro-Mark White Acrylic Primer, 8oz

Micro-Mark Brush-on Thinner, 8 oz

Micro-Mark Brush-on Thinner, 8 oz

Micro-Mark MTP Moldable Thermoplastic Medium, 9.8" x 14.5” Sheet

50% off

Micro-Mark MTP Moldable Thermoplastic Medium, 9.8" x 14.5” Sheet

(1)

clamps bulk

Micro-Mini Clamps, Alligator Jaw (3/8 Inch Capacity, Set of 12)

(1)

Screw Check'r, Inch Checker

Screw Check'r, Inch Checker

(1)

LED Headlight for Hands Free Lighting

50% off

LED Headlamp for Hands Free Lighting

(3)

Micro-Mark Cordless Mixer for Model Paints

21% off

Micro Mark Mixer for Model Acrylic and Enamel Paints

(8)

Micro-Mark Airbrush Paint Thinner

Micro-Mark Airbrush Paint Thinner, 8oz

(2)

Jar Opener, 5 Inch Dia. Capacity

50% off

Jar Opener, 5 Inch Dia. Capacity

(9)

MicroLux Rust Airbrush Paint, 2oz

87% off

MicroLux Rust Airbrush Paint, 2oz

(2)

Mini Nails, 3/8 Inch Long x .020 Inch Dia. (Pkg. of 100)

50% off

Mini Nails, 3/8 Inch Long x .020 Inch Dia. (Pkg. of 100)

(4)

M

Micro-Tools

4.7

(592)

15% off

Pliers - Xuron® Short Nose 2mm Wide (475) - Blue, Pink, Black or Black Cushion Grip Handles

(2)

23% off

Cutters - Xuron® Maxi-Shear™ Flush (Orange, Pink, Black or Cushion Handles)

(2)

10% off

Jeweler's Basics® - Grounded Hemostats for Permanent Jewelry & Micro Welding

(10)

15% off

Cutters - Xuron® - Tapered Head Hard Wire Cutters (Orange, Pink, Black or Black Cushion Handles)

(4)

29% off

The Vanishing Point Duo Grounded Welding Tweezers

(2)

5% off

Magni-Clips 1.0X - 5.0X Eyeglass Clip on Magnifier

(4)

15% off

Pliers - Xuron® Narrow Tweezer Nose™ (452) - Blue, Pink, Black or Black Cushion Grip Handles

(3)

63% off

3/16” BriteGuard Plated Hex L-wrench - Long (1pc Bulk)

7% off

Swanstrom SC15E-2 Double Flush Shear Cutter

Grounded Pliers - Xuron® Small Tweezer Nose® (452) - Blue, Pink or Black Handles

(8)

33% off

Repair Kit For Kodak Carousel Slide Projector w/Focus Motor

(44)

20% off

Lubricant, Oil, Shutter 100gram

(4)

JOOLTOOL

5

(71)

33% off

JOOLSONIC Ultrasonic Polisher

3M SCRATCH ERASERS - JOOLTOOL

9% off

3M SCRATCH ERASERS

(6)

3" Purple Ceramic 80-120-220 grit 9-pack

13% off

CERAMIC GRINDING ABRASIVES

(4)

15% off

3M RADIAL BRUSHES

(3)

50% off

SKINNY SCRATCH ERASERS

25% off

VAC SCOOP

MINI Scratch Eraser Set (3-pack) - JOOLTOOL

23% off

MINI Scratch Erasers

(3)

20% off

Pink Magic Compound

29% off

JOOLTOOL Pink "Magic" Buffing Wheel

(2)

19% off

Scratch-Away Polishing Compound

(1)

38% off

JOOLTOOL Blue "Magic" Buffing Wheels

(2)

Super Polishing Compound - JOOLTOOL

Super Polishing Compound

(2)

GOLD TESTING EQUIPMENT

Exclusive offer available

GTE 3''x6'' Large Black Premium Scratch Touchstone for Acid Gold Silver Platinum Jewelry Testing GTE

12% off

GTE 3''x6'' Large Black Premium Scratch Touchstone for Acid Gold Silver Platinum Jewelry Testing

(1)

1 Pound Copper Bullion Bar Ingot Paperweight - 999 Pure Chemistry Element Design with Certificate of Authenticity (Copy) GTE

38% off

1 Pound Copper Bullion Bar Ingot Paperweight - 999 Pure Chemistry Element Design with Certificate of Authenticity

(9)

1 LB Troy Ounce/OZ .999 Pure American Metal Walking Liberty Eagle BAR Gold Copper Silver Precious Metals Pound Paperweight Pure Element CU Chemistry GTE

38% off

1 LB Troy Ounce/OZ .999 Pure American Metal Walking Liberty Eagle BAR Gold Copper Silver Precious Metals Pound Paperweight Pure Element CU Chemistry

(13)

20 of Gold Silver Jewelry Tester Appraisal Kit 10K 14K 18K 22K 24K Test Precious Metals 999 925 Scrap GTE

12% off

Gold & Silver Testing Kit JSP Acids 10K-24K, Silver, Neutralizer & 2 Large GTE Testing Stones

(7)

1KG/2KG/3KG High-Purity Graphite Crucible for Electric Melting Furnace – Smelting Gold, Silver, Copper & More GTE

1KG/2KG/3KG High-Purity Graphite Crucible for Electric Melting Furnace – Smelting Gold, Silver, Copper & More

(2)

GTE Diamond Analyzer & Rare Earth Magnet Gold & Silver Testing Kit with White 2''x2'' Stone GTE

17% off

Rare Earth Magnet Neodymium N35 for Precious Metals Gold Silver Jewelry Spot Testing Scrap Bars Fake Coins Tester 999 Ring

(11)

Lighted 30x 60x jeweler’s loupe magnifier for inspecting jewelry and coins

12% off

GTE 30X 60X Illuminated Jewelers Eye Loupe Foldable Magnifier Bright LED Light

(3)

Professional Gold, Silver, Platinum Jewelry Testing Kit with Stone Instructions and Box with 30X Eye Loupe Magnifier Precious Metals 10K-24K JSP

16% off

Professional Gold, Silver, Platinum Jewelry Testing Kit with Stone Instructions and Box with 30X Eye Loupe Magnifier Precious Metals 10K-24K

(11)

2026 1 Ounce OZ 999 Fine Solid USA American Liberty Eagle Coin Titanium Precious Metal Ingot Ti Element Chemistry Proof Mint Coin - GOLD TESTING EQUIPMENT

22% off

2026 1 Ounce OZ 999 Fine Solid USA American Liberty Eagle Coin Titanium Precious Metal Ingot Ti Element Chemistry Proof Mint Coin

(2)

2000mL Borosilicate Glass Beaker – High-Quality Griffin Low Form Beaker GTE

8% off

2000mL Borosilicate Glass Beaker – High-Quality Griffin Low Form Beaker

(2)

GTE 100AX Professional Digital Jewelry Scale – 6 Modes: g, oz, gn, ct, ozt, dwt - 100g × 0.01g Accuracy GTE

29% off

GTE 100AX Professional Digital Jewelry Scale – 6 Modes: g, oz, gn, ct, ozt, dwt - 100g × 0.01g Accuracy

(8)

gold, silver, test kit, with diamond tester, scale, and needles on a white background.

21% off

GTE Complete Gold, Silver, & Platinum Jewelry Testing & Appraisal Kit – Professional Grade

(2)

Discover top brands

OOFOS

Exclusive offer available

OOFOS

4.5 (179.3K)

Exclusive offer available

The GLD Shop

4.7 (172.4K)

Little Sleepies

Exclusive offer available

Little Sleepies

4.9 (405.9K)

32 Degrees

4.7 (228.1K)

Aviator Nation

Exclusive offer available

Aviator Nation

4.5 (94.1K)

Mandala Scrubs

Exclusive offer available

Mandala Scrubs

4.6 (11.7K)

Exclusive offer available

Revice

4.4 (9.1K)

Rockstar Original

Rockstar Original

Exclusive offer available

Rockstar Original

4.6 (188.4K)

Culture Kings US

Culture Kings US

Culture Kings US

4.7 (150.5K)

Fashion Nova

4.3 (428.8K)