Vintage New Britain FG-3 feeler gauge set made in the USA. Precision folding thickness gauge used for measuring gaps and clearances in automotive, mechanical, and machinist applications. Marked “FG-3 New Britain Made in U.S.A.” Compact pocket-size design with multiple folding blades. A solid vintage mechanic’s tool from a respected American maker. See photos for complete details and blade sizes. Shows cosmetic wear, discoloration, and signs of normal use/storage. Blades fold properly and tool remains functional.
