11 Different Sizes in Inches with Metric Equivalent Markings – 1/8" to 1"
All Gauges Stainless Steel
The GAL Gage Cat #16 Mini Fillet Weld Keys (GAL-16) is an essential, highly accurate precision tool set designed for welding inspectors, quality control professionals, and welders. Featuring 11 individual fixed-size gauges in a compact, pocket-sized package, this tool enables rapid and reliable pre-inspection and post-inspection measurements of fillet welds in both shop and field environments.
Manufactured by G.A.L. Gage Co. and distributed globally by ABQ Industrial, the Cat #16 Mini Fillet Weld Keys set offers dual-scale precision with permanent laser-engraved markings in both Imperial (Inches) and Metric (Millimeters). Each individual key is precision-machined from high-grade stainless steel to resist corrosion and wear, ensuring long-lasting durability in harsh industrial conditions. The entire set is neatly organized on a sturdy keyring and supplied with a durable protective pocket pouch for maximum portability and convenience.
Kit Contents
- Mini Fillet Weld Key 1/8" (3.2 mm)
- Mini Fillet Weld Key 3/16" (4.7 mm)
- Mini Fillet Weld Key 1/4" (6.4 mm)
- Mini Fillet Weld Key 5/16" (7.9 mm)
- Mini Fillet Weld Key 3/8" (9.5 mm)
- Mini Fillet Weld Key 7/16" (11.1 mm)
- Mini Fillet Weld Key 1/2" (12.7 mm)
- Mini Fillet Weld Key 5/8" (15.9 mm)
- Mini Fillet Weld Key 3/4" (19.0 mm)
- Mini Fillet Weld Key 7/8" (22.2 mm)
- Mini Fillet Weld Key 1" (25.4 mm)
- Pocket Pouch
Certification
The Cat # 16 Mini Fillet Weld Keys can be certified. The certification is not included in the base price and is available at an additional cost. Just add it to cart if your quality control or compliance standards require it.
Features
- Dual-Scale Markings: Clearly marked with both Inch and Metric (mm) equivalents on every key for universal application
- All Stainless Steel Construction: Premium rust-resistant material designed to withstand rugged workshop and field usage
- Compact and Portable: Lightweight design that easily fits into a pocket or clips onto a belt loop via the included keychain
- Pre-Inspection Ready: Ideal for welders to verify their own work prior to formal inspection, minimizing rework and reducing defects
- Versatile Multi-Key Set: Covers 11 distinct dimensions, eliminating the need to carry multiple individual gauges
Applications
- Structural Steel Fabrication: Verifying fillet weld sizes on beams, columns, and connection plates
- Pipeline and Pressure Vessel Construction: Checking weld leg lengths and throat dimensions on-site
- Welding Quality Control (QC/QA): Routine dimensional audits by certified welding inspectors (CWI)
- Training and Education: Excellent practical tool for welding schools and apprentice training programs
- Skewed Member Inspection: Assessing weld dimensions on non-standard joint angles
Specifications
| Measuring Range | 1/8" to 1" (3.2 mm to 25.4 mm) |
| Number of Sizes | 11 Different Fixed Sizes |
| Measurement Scale | Inch and Metric |
| Material Composition | Stainless Steel (corrosion-resistant and rugged for harsh field conditions) |
| Manufacturer | G.A.L. Gage Co. |
How to Use
- Select the Desired Key: Choose the key corresponding to the specified design size for the fillet weld leg or throat
- Surface Contact: Place the appropriate edge or face of the key flush against the base metal and the weld toe
- Evaluate Fit for Convex Welds: check if the contour matches the gage curve
- Evaluate Fit for Leg Size: check the horizontal and vertical dimensions against the weld legs
- Read Measurement: Confirm compliance based on whether the key fits snugly without excessive gap or interference
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