Keyed Shafting Dia. tolerance: -0.001/-0.0025 Key width tolerance: +0.003/-0.000 Straightness tolerance: 0.012 per ft. All material is furnished as cold-drawn, ground, and polished. Manufactured to ANSI B17.1-1967, R1973 standards. This listing is for each. Technical Specification Item Keyed Shaft Material Carbon Steel Grade 1045 Diameter 1 in Length 6 in Keyway 1/4 in x 1/8 in Keyway Width 0.25 in Keyway Depth 0.859 in Diameter Tolerance -0.0005/-0.0025 in Straightness Tolerance 0.012 in/ft Standards ANSI B17.1-1967, ASTM A-108, R1973