Iso 286 Pdf !exclusive! -

: Represented by numbers (IT01 to IT18). Lower numbers mean higher precision (e.g., IT6 is for high-precision tools, while IT11 might be for rough machining).

Requires a hydraulic press, heating the hole, or freezing the shaft to mate. iso 286 pdf

The PDF provides the mathematical formulas used to calculate the standard tolerance IT for each grade. For example, for IT grades 5 through 16, the formula is IT = 10 * i , where i is a function of the basic size. : Represented by numbers (IT01 to IT18)