Image 1 of 2 Image 2 of 2 Basic Bridging Pit Gauge from $595.00 N88-9B, N88-9B-M, N88-9B-DThe Basic Bridging Pit Gauge provides Inspectors with an Economical Alternative. Package: Select Package Base Price W/Metric Upgrade W/Digital Upgrade Quantity: Add To Cart Added! N88-9B, N88-9B-M, N88-9B-DThe Basic Bridging Pit Gauge provides Inspectors with an Economical Alternative.