Fully Keyed Rotary Drive Shaft Material Aluminum Diameter 1 in Overall Length 6 in System of Measurement Inch Diameter Tolerance +/-0.0025 in End Type Keyed Keyway Depth 1/8 in Keyway Length 1/8 in Keyway Width 1/4 in Standards ANSI B17.1-1967 R1973 Straightness Tolerance 0.012 in/ft Groove Spacing Not Applicable Number of Grooves 0