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Tool Steel Tolerances

 

Round Bars | Square Bars | Rectangle Bars

 

 

 

 

Round Bars
       Spec. Diameter, in.  Diameter Tol.
 Tool Steel  Drill Rod   A2, D2, H13, M2, O1, S7, W1  Up to 0.124  +/- 0.0003"
 Tool Steel  Drill Rod   A2, D2, H13, M2, O1, S7, W1  0.125 to 0.499  +/- 0.0005" 
 Tool Steel   Drill Rod   A2, D2, H13, M2, O1, S7, W1  0.500 to 3   +/- 0.0010" 

 

 

Square Bars      
      Spec. Square, in.  Square Tol.
 Tool Steel   Square Bar  1018, A2, D2, O1,  Any  +/- 0.001"
 Tool Steel   Square Bar  Oversize - A2, D2, H13, O1  Any  + 0.010 to +0.015

 

Square Bars
         Spec. Square, in.   Square Tol.
 Tool Steel   Square Bar  W1  Cold Drawn   1.000" to 0.750" (largest dim.)  +/- 0.0015"
 Tool Steel   Square Bar  W1   Cold Drawn    0.749" to 0.250" (largest dim.)  +/- 0.0010 
 Tool Steel   Square Bar  W1   Cold Drawn   0.124" and smaller  +/- 0.0005

 

 

Rectangle Bars
         Spec. Thickness, in.  Thickness Tol.  Spec. Width, in.  Width Tol.
Tool Steel  Rectangle Bar  1018, A2, D2, O1  Precision Ground  Any  +/- 0.001"  Any  + 0.0" to + 0.005"
               
Tool Steel  Rectangle Bar (All Oversize):H13, A2, D2, O1, S7  Precision Ground  Any + 0.010" to + 0.015"  Any + 0.010" to + 0.015"
Spec. Length for alloys above, in. Length Tol.            
 18"  + 0.125" to + 0.250"            
 24"  + 0.500, - 0"            
 36"  + 0.250" to + 0.500"            

 

Rectangle Bars
         Size, in.  Standard Tol. (section)  Standard Tol. (length)
Tool Steel  Rectangle Bar  W1  Cold Drawn   1.000" to 0.750" (largest dim.)   +/- 0.0015"   + 0.125", - 0"
Tool Steel   Rectangle Bar   W1   Cold Drawn    0.749" to 0.250" (largest dim.)   +/- 0.0010"   + 0.125", - 0"
Tool Steel   Rectangle Bar   W1   Cold Drawn    0.124" and smaller   +/- 0.0005"   + 0.125", - 0"