GAL Fillet Gauge / Pit Depth Gauge for Weld Size and Corrosion Measurement (GACAT5A-00)

Precision Depth Measurement for Small Cavities

This gauge is designed to reach the bottom of holes as small as 1/8” in diameter and up to 1/2" deep, making it ideal for detailed inspections in tight spaces.

The GAL Fillet Gauge & Pit Depth Gauge is used by welding inspectors, corrosion engineers, and quality control technicians to measure weld fillet dimensions and surface pit depths on metal structures. Fillet gauges help verify throat and leg sizes against design tolerances, and pit depth gauges provide non‑destructive measurement of corrosion or surface degradation, supporting fabrication and maintenance quality control workflows described in industry inspection guides.

Professionals value these gauges for their simple, rugged design and accurate measurement scales that support consistent dimensional checks during field or shop inspections. Compared with improvised measuring tools, dedicated fillet and pit depth gauges improve repeatability and documentation of weld quality and surface condition assessments in structural fabrication, corrosion monitoring, and maintenance programs.

Versatile Inspection Capabilities

• Checks Undercuts with accuracy
• Detects Porosity in materials
• Identifies Pits and imperfections
• Constructed entirely from durable Stainless Steel

Q&A

What is the smallest hole this depth gauge can measure?

The gauge can accurately reach holes with a diameter as small as 1/8” and a depth up to 1/2".

Can this gauge detect material defects?

Yes, it is capable of checking undercuts, porosity, and pits in various materials.

What material is the gauge made from?

The depth gauge is made entirely of stainless steel for strength and corrosion resistance.

Is this tool suitable for professional inspection use?

Absolutely, its precision and durable construction make it ideal for professional quality inspections in tight or hard-to-reach spaces.