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			I'm a hobbyist machinist and 0.01mm is accuracy I can only read about, not something I achieve.   ;-) 
 
FWIW, I just looked up the Porsche specs for runout in the 996 Workshop Manual. 
 
Lateral runout of the brake disc, max. - 0.03 mm 
Lateral runout of the wheel hub, max. - 0.03 mm 
Lateral runout of the brake disc when installed, max. - 0.06 mm 
 
Maximum permissible radial runout and lateral runout of the light 
alloy wheels = 0.7 mm. 
 
Bill
		 
		
		
		
		
		
		
		
		
	
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