H&R Resources Limits and Fits

Select limits and fits to ISO286 parts 1 and 2 1988. Add keys and keyways to BS4235 Part1 1972. Use Selected Fits to AS1654 - 1974. For all shaft and hole machining specifications. Features: Maximum and minimum clearance or interference is displayed. Select any deviation and tolerance range with a mouse click. Add the standard size keyway or select a small keyway with ease. Small keyways are recalculated in accordance with BS4235. Copy and paste any dimension text in to your CAD application.