2009年2月13日 · From the definition of ISO fits: Any combination of "H" hole with the shaft marked with letter located before "H" in the alphabet, creates the clearance fit.

2010年12月21日 · In your case: 25H7 = 25mm -0, +21. Quality H7 can be achieved by reaming.That is -0.000mm, + 0.021mm. My advise: If you are in the machining business - …