Phone: 888 275 5772 281 516 9292 eFax: 866 234 0451 Free Shipping on orders over $150

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.


  • 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

  • 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

  • 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

  • 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

  • PCWI Digital Pit Gauges

    PCWI Digital Pit Gauges
    Price: $ 355.00 up to $ 455.00
    0917 & 0923 Digital Pit & Crack Depth Gauges
    Digital Pit, Crack & Corrosion Depth Gauges / Pipe Pit Gauges
    Manufacturer: PCWI
    Warranty: One Year

  • N88-9B-D Digital Pipe Pit Gauge

    N88-9B-D Digital Pipe Pit Gauge
    Price: $ 545.00
    The Digital Pipe Pit Gauge evolved from specific customer requests!
    Manufacturer: Western Instruments
    Warranty: One Year