Diameter stock – The amount of stock on the outside diameter (OD) of tubing 3/64 OD and smaller is shown in the following chart:
| Diameter | Min. OD stock | Max. OD stock |
| 1/64” | +.010” | +.018” |
| 1/32” | +.012” | +.020” |
| 3/64” | +.014” | +.022” |
Diameter stock – The amount of stock on the diameter of tubing larger than 3/64 OD is based on the OAL and is shown in the following chart:
| Tube OAL | Min. OD stock | Max. OD stock |
| 3.000” or shorter | +.016” | +.024” |
| 3.001” – 11.999” | +.020” | +.028” |
| 12.000” or longer | +.024” | +.032” |
ID tolerance – is based on the hole size as shown in the following chart:
| Hole diameter | Tolerance (+/-) |
| .039” and smaller | .002” |
| .040” – .079” | .003” |
| .080” – .149” | .004” |
| .150” and larger | .005″ |
Length stock – Due to the shrinkage variation the amount of stock on the length of a tube increases as the OAL of the tube increases. Grind stock will be added to the finished length of a tube as shown in the following chart:
| Blank OAL | Min. length stock | Max. length stock |
| Length up to 6.000” | +.010” | +.070” |
| 6.001” and longer | +.010” | +.200” |
Warpage allowance – All tubing is checked 100% for warpage. Tubing warpage is measured on a flat plate with a feeler gauge. Maximum warpage allowed is based on the OAL/OD grind stock as shown in the following chart:
| Blank OAL | Max. warpage |
| 6.000” and shorter | .006” |
| 6.001” and longer | .008” |