y AmericanNPT(inch)
Pitch (thd/Total CttiNumberofPassesInsert Type
rea inch)ung Depth1 23456789101112131415G-class ground inserts
27.026.006 .005.005.004.004.002MMT16IR270NPT
18.040.008 .006.006.005.005.004.004.002MMT16IR180NPT
14.052.009 .007.006.006.005.005.004.004.004.002MMT16IR140NPT
11.5.065.009 .007.007.006.006.005.005.005.005.004.004.002MMT16IR115NPT
8.095.013 .011.009.008.007.006.006.006.005.005.005.004.004.004.002MMT16IR080NPT

yAmerican NPTF (inch)

Pitch (thread/ inch)Total Cutting Depth1234567 Numb8 er of P9 asses101112131415Insert Type G-class ground inserts
14.053.009.008.006.006.005.005.004.004.004.002MMT16IR140NPTF
11.5.064.009.009.007.006.005.005.005.004.004.004.004.002MMT16IR115NPTF
8.094.013.011.009.007.007.006.006.006.005.005.005.004.004.004.002MMT16IR080NPTF

Note 1) Set the finishing allowance on a diameter at approx. .004 inch when using a full form insert.

  • Please note the cutting depth and the number of passes when a nose radius of a partial or semi-full form insert or of an internal threading insert is small to prevent damage to the insert nose.
  • Please set the cutting depth sufficiently deep enough on materials such as hardened steel or austenitic stainless steel to help prevent premature wear and chipping caused by the outer layer of the material.

G