The Fowler 52-229-711-0 includes a 6" dial caliper graduated in 0.001", a 0-1" vernier micrometer graduated in 0.001" and a 6" EZ read flexible steel rule graduated in 8ths, 16ths, 32nds and 64ths. Caliper measures outside, inside, depth and step dimensions. Made of stainless steal with a shockproof gearing. The micrometer has a hardened steel spindle, ground and lapped for accuracy with carbide measuring faces. The rule has a high contrast black finish with white numbering for easy reading. All contained in a shop hardened storage case. Fowler, an American company, manufactures inspection and measurement instruments such as electronic indicators, calipers, bore gages and digital scales. The company founded in 1946, is headquartered in Newton, MA.