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Sterling Silver Round Tubing - Sold In 3" Lengths - Otto Frei
Sterling Silver Round Tubing - Sold In 3" Lengths - Otto Frei
Sterling Silver Round Tubing - Sold In 3" Lengths - Otto Frei
Sterling Silver Round Tubing - Sold In 3" Lengths - Otto Frei
Harmony

Sterling Silver Round Tubing - Sold In 3" Lengths

Part # 844-3121 Out of Stock Weight -- lb / -- g
$23.50
Select Size: 3.25mm OD x 2.2mm ID

Seamless sterling silver round tubing sold in 3" (76.2 mm) lengths, ideal for hinge tubes, tube-set stones, bezels, and precision fabrications. Ordering sizes are approximate; exact factory measurements are listed in the Available Options table below as OD × ID with suggested insert wire gauge and wall type.

How to Choose

  • Hinges: Select tubing with an inside diameter (ID) just larger than your hinge pin. Use a slightly smaller diameter wire than the ID for a proper fit.
  • Tube setting stones: Pick an outside diameter (OD) approximately 0.5 mm larger than the stone, and an ID smaller than the stone so it does not drop through. Cut the seat with a bur the exact size of the stone.
  • All sizes are sterling silver; not medical-grade material.

Bench Tips

  • If your stone sits between sizes, choose the next smaller ID. You can slightly expand the mouth with a center punch before cutting the seat to create a subtle taper.
  • Use bezel setting tools (e.g., part #153.154MA) for fast, uniform tube settings.
  • Need longer stock? See our matching Sterling Silver Round Tubing in 12" lengths.

Specifications

Metal Sterling Silver
Construction Seamless
Profile Round
Length 3" (76.2 mm)
Sold As Individual piece per size selected

Available Options

Part # OD × ID (Exact) Insert Wire Wall
844-1611 1.62 mm × 1.11 mm 18 ga 0.25 mm Light
844-2010 2.03 mm × 1.00 mm 19 ga 0.50 mm Heavy
844-2015 2.03 mm × 1.52 mm 15 ga 0.25 mm Light
844-2515 2.56 mm × 1.54 mm 15 ga 0.50 mm Heavy
844-2520 2.56 mm × 2.05 mm 13 ga 0.25 mm Light
844-3025 3.00 mm × 2.26 mm 13 ga 0.40 mm Medium
844-3121 3.25 mm × 2.23 mm 12 ga 0.50 mm Heavy
844-3126 3.25 mm × 2.74 mm 10 ga 0.25 mm Light
844-3525 3.55 mm × 2.54 mm 11 ga 0.50 mm Heavy
844-3830 3.86 mm × 3.09 mm 9 ga 0.40 mm Medium
844-4535 4.57 mm × 3.55 mm 8 ga 0.50 mm Heavy
844-4840 4.87 mm × 4.11 mm 7 ga 0.40 mm Medium
844-5643 5.61 mm × 4.34 mm 6 ga 0.625 mm X-Heavy
844-5850 5.86 mm × 5.10 mm 5 ga 0.40 mm Medium
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.
Brand
Harmony
Part #
844-3121
Type
Metal Stocks
Country of Origin
United States
Dimensions
3 in x 0.05 in x 0.05 in
Metal
Sterling Silver
Construction
Seamless
Profile
Round
Length
3" (76.2 mm)
Sold As
Individual piece per size selected