Pit Gauges

Pit gauges assure compliance with corrosion allowances for equipment wherever corrosion affects materials, such as pipeline, vessels, piping, storage tanks, oil country tubular goods, drill pipe, bottom hole assemblies, bridges and structures, shipping, concrete, and aircraft components. Due to there versatility, many of our Pit Gauges have other uses, such as wear measurement, Weld Alignment, Structural Fit-up, etc. Western Instruments Dial Pit Gauges allow the Corrosion Inspector to conveniently measure Pit Depth or material loss in areas of Weight-Loss Corrosion. Various types are available for different applications, including the Tri-Gauge® for basic evaluation and the Bridging Pit Gauge for evaluating large areas of weight loss corrosio.


Product Image Item Name
N88L-1 Tri-Gauge Pit Gauge Range +/-13mm

N88L-1 Tri-Gauge Pit Gauge Range +/-13mm

Price: $ 95.00
Tri-Gauge® XM Lever Type Pit & Welding Gauge Part No. N88L-1
Mechanical Lever Pit Gauge with Metric and Imperial Scales
Range/Resolution: +/-13mm (0.500") / 0.5mm (0.010")

Junior Tri-Gauge Pit & Welding Gauge

Junior Tri-Gauge Pit & Welding Gauge

Price: $ 95.00
Junior Tri-Gauge VM® Lever Type Pit & Welding Gauge Part No. N88L-2
Mechanical Lever Pit Gauge with Metric and Imperial Scales
Range/Resolution: +/- 3mm (0.100") / 0.2mm (0.005")

N88-2 Basic Pit Gauge Centre Mount 2.25in (57mm) Blade

N88-2 Basic Pit Gauge Centre Mount 2.25in (57mm) Blade

Price: $195.00 to $330.00
N88-2 Basic Pit Depth Gauges with Dial or Digital Indicators
Western Instruments Pit Gauges assure compliance with vessel, pipeline, tank and OCTG specifications for corrosion and erosion depth measurement.
Measuring Range x Resolution: 14 x 0.01 mm, 0.550 x 0.001 inch
Center-mount 2-1/4 inch (57 mm) Blade
Available with inch dial, metric dial or digital indicators

N88-3 Basic Plus Pit Gauge Centre Mount 3.25in (82mm) Blade

N88-3 Basic Plus Pit Gauge Centre Mount 3.25in (82mm) Blade

Price: $215.00 to $ 350.00
N88-3 Basic Plus Pit Gauges with Dial or Digital Indicators
Western Instruments Pit Gauges assure compliance with vessel, pipeline, tank and OCTG specifications for corrosion and erosion depth measurement.
Measuring Ranges x Resolution: 14mm x 0.01mm, 0.550 x 0.001 inch
Center-mount 3-1/4 inch (82 mm) Blade
Available with dial or digital indicators

N88-4 Pocket Pit Gauge with Dual Edge Blade

N88-4 Pocket Pit Gauge with Dual Edge Blade

Price: $ 275.00 up to $ 410.00
Pocket Pit Gauges with Reversible Dual Edge Blade
Western Instruments Pit Gauges assure compliance with vessel, pipeline, tank and OCTG specifications for corrosion and erosion depth measurement.
Measuring Ranges x Resolution: 14 x 0.01 mm, 0.550 x 0.001 inch
Dual Edge Blade (Reversible), 1.5 inch (38 mm) long and spot bade
Available with dial or digital indicators

N88-5 Reaching Pit Gauge 4.75in (121mm) Blade

N88-5 Reaching Pit Gauge 4.75in (121mm) Blade

Price: $295.00 to $430.00
N88-5 Reaching Pit Gauges with Dial or Digital Indicators
4-3/4-inch (121 mm) wide Blade, End-mount with Long Nose Cutout
Measuring Ranges x Resolution: 14 x 0.01mm, 0.550 x 0.001 inch
Available with dial or digital indicators

N88-5M Reaching Magnetic Pit Gauges 4.75in Blade Two Cartridges

N88-5M Reaching Magnetic Pit Gauges 4.75in Blade Two Cartridges

Price: $415.00 to $550.00
N88-5M Reaching Magnetic Pit Gauges with Dial or Digital Indicators
4-3/4-inch Blade, End-mount with Two (2) Magnetic Cartridges
Measuring Ranges (Resolution): 0.0 - 10mm (0.01mm), 0.0 - 0.5 inch (0.001 inch)
Available with dial or digital indicators

N88-6 Reaching Plus Pit Gauge 6in (152mm) Blade

N88-6 Reaching Plus Pit Gauge 6in (152mm) Blade

Price: $335.00 to $470.00
N88-6 Reaching Plus Pit Depth Gauges with Dial or Digital Indicators
6 inch (152 mm) Blade, End-mount with Long Nose Cutout
Measuring Ranges x Resolution: 14 mm x 0.01mm, 0.550 x 0.001 inch
Available with dial or digital indicators

N88-6M Reaching Plus Magnetic Pit Gauge 6in (152mm) Blade

N88-6M Reaching Plus Magnetic Pit Gauge 6in (152mm) Blade

Price: $440.00 to $575.00
N88-6M Reaching Plus Magnetic Pit Gauges
6" (152 mm) Blade, End-mount with Two (2) Adjustable Magnetic Cartridges.
Measuring Ranges x Resolution: 14 x 0.01mm, 0.550 x 0.001 inch
Available with dial or digital indicators

N88-12 Reference Pit Gauge

N88-12 Reference Pit Gauge

Price: $715.00 to $845.00
N88-12 Reference Pit Gauges with Dial or Digital Indicators
Western Instruments Pit Gauges assure compliance with vessel, pipeline, tank and OCTG specifications for corrosion and erosion depth measurement.
Measuring Ranges x Resolution: 14 x 0.01 mm or 0.550 inch x 0.001 inch)
5.5" (140 mm) long, 3/4" (19 mm) wide with Inverted V Edge and 2 Adjustable Magnet Cartridges
Available with dial or digital indicators


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