Round Rods Tolerance

Product Tolerance for Tungsten Carbide Rods (inches)

Unground O.D. = + 0.010″ to +0.020″ depending on the diameter
Utility Ground O.D. = +0.000 / + 0.002″
Precision Ground O.D. = -0.000 / -0.0005″
Precision Ground and Polished O.D. = -0.0000 / -0.0005″
Overall Length grinding stock = +0.0 to +.050″

Total Indicated Roundout (T.I.R)

Unground = not applicable
Cut to length Precision Ground Rods/Precision Grounded and Polished Rods
<0.0003 for 4″ length and under
<0.0006 for 5″ & 6″ lengths

Surface Finish

Unground = 64 Ra or above
Utility/Rough Ground = 32 – 64 Ra
Precision Grounded = 16 – 32 Ra
Precision Grounded and Polished = 2 – 4 Ra