Fillet Weld Gauge

Accuracy guaranteed new manufacturing process allows unsurpassed accuracy of ±.005. The G.A.L. Fillet Weld Gauge allows fast and accurate measurement of eleven (11) fillet weld sizes i.e. 1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 5/8, 3/4, 7/8, and 1", and their metric equivalents, to determine weld sizes, either concave or convex.

Each gauge blade is made of 1-1/4" x 4" cold rolled stainless steel to resist rust and bending. Blades are deburred to remove rough edges. All sizes and numerals are engraved into the surface for easier reading. The set of seven blades comes in a handy 2" x 4 1/2" pocket case weighing only 4 oz.

We offer our clients a wide range of Adjustable Fillet Weld Gauges, which measures any fillet weld to 1/32" accuracy with just one simple to use gauge. It is also used for measuring fillet welds used to be a trial with complicated or inaccurate gauges. It is used in various industries to measure fillet welds from 1/8" to 1" (with ±1/32" accuracy) with one economical and simple to understand gauge.

The G.A.L. Adjustable Fillet Weld Gauge uses an offset arm which slides at a 45° angle to make fillet weld length measurements. Simply adjust the arm until it touches the toe of the vertical leg. The gauge is calibrated to 32nds, with metric equivalents given, so as to ensure more accurate readings. Four screws hold the offset arm in position for future adjustments.


This welding inspection gauge also measures weld throat thickness to 1/ 16" by adjusting a pointer until it touches the center of the weld. A thumb screw holds the pointer in position for future reference. If the weld is concave, more filler material can be added to build the weld throat up to standard. Our range of products measures both leg lengths and weld throat fillet weld thickness.


The G.A.L. Adjustable Fillet Weld Gauge is made of durable, rust resistant stainless steel. Its 2¼ x 3" slim design weighs only 1½ oz., fits easily into a shirt pocket. As there is just one gauge needed to make all measurements, the chance of losing essential fillet weld gauge blades is eliminated. Fumbling through seven different, inaccurate gauge blades is also eliminated.

Pre Inspection Pocket Fillet Weld Gauge is a new Pocket size instrument that measures 8 size fillets. It checks leg length, throat size, plus allowable convexity. All increments are permanently engraved. It is available in standard and metric and each welder can carry set for pre-inspection. It has a handy key ring that holds set together. The entire product is manufactured using material anodized aluminium.