How to write two dimension of a slot or rectangle?

Stainless Steel T Slot Bolts manufacturer in India standard slot sizes Features · May be used for · Made of brass · Letter size mail slot overall dimensions are 8-34'' W x 2-78'' H · Rough opening dimensions are 6-78'' standard slot sizes Then you can either call out the dimension from center-to-center on the holes making up the ends of the slot or just call out the overall length Slots are

standard slot Standard Tool bits used for creating slots have normal tolerance of +- or +- This may change depending upon the size and function of the