Cast Iron (Dura-Bar) Tolerances

Round Bar
	Amount Oversized
Nominal Diameter Size, in.	G2	65-45-12	80-55-06	Diameter Tolerance, in.
0.750 to 1.250	+ 0.085"	+ 0.088"	+ 0.088"	+/- 0.017"
1.251 to 2.000	+ 0.090"	+ 0.095"	+ 0.090"	+/- 0.024"
2.001 to 3.000	+ 0.110"	+ 0.118"	+ 0.113"	+/- 0.030"
3.001 to 4.000	+ 0.125"	+ 0.136"	+ 0.131"	+/- 0.038"
4.001 to 5.000	+ 0.140"	+ 0.154"	+ 0.149"	+/- 0.048"
5.001 to 6.000	+ 0.155"	+ 0.172"	+ 0.162"	+/- 0.055"
6.001 to 7.000	+ 0.170"	+ 0.190"	+ 0.180"	+/- 0.062"
7.001 to 8.000	+ 0.190"	+ 0.213"	+ 0.203"	+/- 0.085"
8.001 to 9.000	+ 0.216"	+ 0.242"	+ 0.232"	+/- 0.108"
9.001 to 10.000	+ 0.254"	+ 0.283"	+ 0.273"	+/- 0.129"
10.001 to 11.000	+ 0.400"	+ 0.432"	+ 0.422"	+/- 0.150"
11.001 to 16.000	+ 0.582"	+ 0.623"	+ 0.608"	+/- 0.206"
16.001 to 18.000	+ 0.762"	+ 0.815"	+ 0.795"	+/- 0.262"
18.001 to 20.000	+ 0.762"	+ 0.819"	+ 0.799"	+/- 0.262"
Example (G2) : 4.00” + 0.125” = 4.125” tolerance is +/- 0.038” Max size = 4.163 Min size = 4.087. Finishes to 4.000"