Skip to content

Ferris File-A-Wax Ring Tube T-875 7/8" Round Center Hole

Part # 121.178 Only 2 left Weight -- lb -- g
Current price $8.00
Hardness: Turquoise-Medium Hard

Ferris File-A-Wax Style T-875 ring tubes are the carving wax of choice for master jewelers and metalsmiths working in the lost wax casting tradition. Each tube measures 6" (152mm) in length with a 7/8" outside diameter and a 5/8" (15.9mm) centered round hole — ideal for carving rings, cuff links, pendants, medallions, and more. These waxes are easily sawed, carved, drilled, milled, and turned on a lathe, and they burn out cleanly from investment molds without leaving residue. They will stand up to rough handling and will not soften in the hand during carving.

Available in five color-coded hardness formulas to suit every carving technique — from highly flexible thin-wall sections to CNC lathe work — Ferris File-A-Wax ring tubes give craftspeople precise control over the model-making process.

Features

  • Style T-875 ring tube format with centered round hole for ring blanks
  • Five color-coded hardness formulas: Blue (Soft), Purple (Medium), Turquoise (Medium Hard), Green (Hard), and Gold (Harder/Wolf Wax)
  • Blue formula bends 90° at 1/8" thickness — ideal for extreme thin-wall sections
  • Purple formula offers some flexibility for general-purpose hand carving
  • Turquoise formula is medium hard with excellent milling performance
  • Green formula is fully rigid for highly intricate, detailed carving
  • Gold formula (also called Wolf Wax) is optimized for carving and CNC lathe work
  • Easily sawed, carved, drilled, milled, and lathe-turned
  • Burns out cleanly from investment molds
  • Will not soften in the hand during carving
  • Stands up to rough handling

Specifications

Style T-875
Length 6" (152mm)
Outside Diameter 7/8"
Center Hole 5/8" (15.9mm) round, centered
Approximate Melting Point 240°F
Application Lost wax casting models
Burnout Method Must be burned out of investment molds
Steam De-Waxer Compatible No — not for use in steam de-waxers

Available Options

Part # Color Hardness Shore D / Flexibility / Hand Carve / Milling
121.178 Turquoise Medium Hard 56 / Fair / Excellent / Excellent
121.212 Gold (Wolf Wax) Harder 59 / Good / Good / Excellent
121.358 Purple Medium 55 / Good / Excellent / Fair
121.360 Blue Soft 52 / Excellent / Good / Poor
121.362 Green Hard 57 / Fair / Fair / Good

Notes

  • Must be burned out of investment molds — not compatible with steam de-waxers.
  • Gold formula is also known as Wolf Wax and is specifically suited for CNC lathe applications.
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.
Brand
Ferris
Part #
121.178
Type
Wax Tubes
Country of Origin
United States
Dimensions
8 in x 2.5 in x 1.75 in
Style
T-875
Length
6" (152mm)
Outside Diameter
7/8"
Center Hole
5/8" (15.9mm) round, centered
Approximate Melting Point
240°F
Application
Lost wax casting models
Burnout Method
Must be burned out of investment molds
Steam De-Waxer Compatible
No — not for use in steam de-waxers