Veritas Bar Gauge Set
Using a bar gauge lets you directly transfer and compare dimensions without conversion to numbers, reducing the chance of transcription errors. You can even use it to quickly test an assembly for squareness by checking that the diagonals are equal.
This bar gauge has a base unit that consists of two 6 inch (150 mm) steel rods fixed to aluminum clamp heads. The rods have threaded end holes that accept interchangeable brass tips or extension rods (included).
Three styles of tips are included: ball tips for inside measurements (the rounded ends avoid marring softwood), pointed tips for inside corner measurements, and mushroom-shaped tips(diameter 21 mm) to hook over edges for outside measurements. The distance between the ends of the round or pointed tips is equal to the distance between the inside faces of the mushroom-shaped tips – this lets you convert an inside measurement to an outside measurement just by switching tips.
The clamp heads have large thumbscrews and slide easily for quick adjustment. The base unit adjusts from 7-1/2 inch (190 mm) to 12 inch (305 mm). Two pairs of extension rods are included, 4 inch (102 mm) and 12 inch (305 mm), allowing a maximum span of 44 inch (1117 mm). For greater reach, additional 12 inch extension rods are available.
A fast, reliable way to get the true measurement, not just the closest ruler mark. Replace "measure twice, cut once" with "gauge once, cut once!". Made in Canada.