The G.A.L. Gage Co. Taper Gauge (Cat # Sub 28C) is a high-precision inspection tool engineered for accurate measurement of large slot widths, gap dimensions, hole diameters, and fit-up alignments. Crafted from durable 410 stainless steel, this versatile gauge features dual-sided graduations supporting both imperial and metric units, making it an indispensable instrument for quality control inspectors, welders, and machinists in heavy industrial environments.
Designed for maximum accuracy and rugged durability, the Sub 28C Taper Gauge provides quick and reliable dimensional verification for extra-large openings ranging from 1-3/16" to 2" (30 mm to 50 mm). The tapered blade features laser-etched, high-contrast markings for exceptional legibility under various workshop conditions. Side I displays imperial units from 1-3/16" to 2" with 1/64" graduations, while Side II provides metric units from 30 mm to 50 mm with 0.2 mm graduations. Built from robust 410 stainless steel, it resists corrosion and wear, ensuring dependable performance in demanding fabrication and manufacturing settings.
Certification
The Cat # SUB28c Taper Gauge 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-Sided Measurement Scales: Side I features Imperial (Inches); Side II features Metric units for global operational versatility
- Premium 410 Stainless Steel Construction: Provides exceptional corrosion resistance, structural rigidity, and a satin finish to eliminate glare
- Precision Laser-Etched Markings: Permanent, high-contrast graduations designed to withstand heavy wear and tear in industrial settings
- Optimized Range for Extra-Large Openings: Specifically engineered for measuring larger ranges from 1-3/16" up to 2" (30 mm to 50 mm)
- Made in the USA: Manufactured to rigorous quality benchmarks by industry leader G.A.L. Gage Co.
Applications
- Welding and Fit-Up Inspection: Ensuring exact root gap openings and joint fit-up tolerances prior to welding operations
- Machining and Tooling Quality Control: Measuring precise slot widths, groove depths, and large hole diameters
- Sheet Metal and Plate Fabrication: Verifying material clearances, slot dimensions, and edge alignments during fabrication
- Maintenance, Repair, and Operations (MRO): An indispensable tool for technicians, quality inspectors, and engineers requiring quick and reliable dimensional verification
Specifications
| Measurement Scale | Inch and Metric |
| Maximum Range | 2" - 50 mm |
| Minimum Range | 1-3/16" - 30 mm |
| Material | Stainless Steel |
| Graduations | 1/64" - 0.2 mm |
How to Use
- Select the Desired Scale: Choose Side I for imperial readings (inches) or Side II for metric readings (millimeters)
- Insert the Gauge: Gently insert the tapered end of the gauge directly into the slot, gap, or hole until it fits snugly without applying excessive force
- Read the Measurement: Read the value corresponding to the exact point where the edge of the opening aligns with the graduation mark on the gauge
- Record Data: Note the measurement for quality assurance documentation or inspection logs
- Clean and Store: Wipe the gauge clean with a dry, lint-free cloth after use and store it safely in its protective case
Downloads
