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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 +/- 0.005"
        
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" + 0.1875 to + 0.375"      
 36" + 0.250" to + 0.500"      
 72" + 0.250" to + 0.750"      

 

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"