SOLID CARBIDE END MILLS

All dimensions are in inches unless otherwise noted.


End Mill Style Number of Flutes KBSS Tolerance
Single-End / Double-End Finishers All +.000 / -.002
Single-End / Double-End Finishers (Flute Dia <=7/64") All +/- .0005
Single-End 2 & 4 +.001 / - .000
Finishers (NC Tolerance)
Single-End Roughers 3, 4 & 5 +.000 / -.003
Single-End Micro Decimal 2 & 4 + /- .0005
Thread Mills All +.000 / -.002
Composite Cutting Tools All +.000 / -.002
Diamond Coated End Mills 2 & 4 +/- .001
Mold and Die 6 +.000 / -.002
Mold and Die (Flute Dia < Shank Dia) 2 +/- .0005
Mold and Die (Flute Dia = Shank Dia) 2 +.000 / -.001
Ball-End All Ball radius tolerances: flute dia tolerances / 2
Corner Radius All +/- .001

Shank Diameter Tolerances

End Mill Style KBSS Tolerance
All Inch Shanks -0.0001 / -0.0004
All Metric Shanks h6

Length-Of-Cut Tolerances

End Mill Style KBSS Tolerance
All Except Micro Decimal +.030 / - 0
Micro Decimal .030 Dia and Under +.002 / -0

Micro Decimal .031 Dia and Above

 +.005 / -0

Overall Length Tolerances

End Mill Style KBSS Tolerance
All + .015, +/-.030

TIR Condition

End Mill Style Cutting Diameter KBSS Tolerance
All Except Roughers .005 thru .030 0.0001 Max
.031 thru .060 0.0002 Max
.061 thru .111 0.0003 Max
.112 and above 0.0005 Max
Roughers All 0.0010 Max-

Back Taper

End Mill Style KBSS Tolerance
All .0005 Max Back Taper Per Inch permissible.
Not to exceed the Cutting Diameter Tolerance.