What is hkl tolerance class?
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Answer # 1 #
GENERAL TOLERANCES FOR FORM AND POSITION (DIN ISO 2768 T2) STRAIGHTNESS AND FLATNESS Tolerance classRanges in nominal lengths in mm H K L up to 10 0. Permissible deviations in mm for ranges in nominal lengths, f (fine), Tolerance class designation (description), v (very coarse). It specifies general geometrical tolerances in three tolerance classes. So, in -2 you'll see that K is a tolerance class. The class of the general tolerance applied is typically called out in the title box on the drawing. Tolerance class is defined as per design requirements and manufacturing capability.
