INSIZE 4602-13A Feeler Gauge 0.03-0.50mm

The INSIZE 4602-13A is a feeler gauge covering 0.03 to 0.50 mm across 13 leaves, used to measure or check the width of a gap between two surfaces. It is made of hardened alloy steel to DIN 2275, grade TC1. INSIZE states the accuracy as ±(3 + T/80) micrometres, where T is the thickness of the leaf in micrometres, so the thinnest leaves are held to a tighter tolerance than the thickest. It is the fine-thickness member of INSIZE's 4602 feeler gauge range, which runs up to a 32-leaf, 0.03-1.00 mm set.