THREADING yAmerican NPT (inch) Pitch Total Number of Passes Insert Type (thread/ Cutting inch) Depth 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 G-class ground inserts 27 .026 .006 .005 .005 .004 .004 .002 MMT16IR270NPT 18 .040 .008 .006 .006 .005 .005 .004 .004 .002 MMT16IR180NPT 14 .052 .009 .007 .006 .006 .005 .005 .004 .004 .004 .002 MMT16IR140NPT 11.5 .065 .009 .007 .007 .006 .006 .005 .005 .005 .005 .004 .004 .002 MMT16IR115NPT 8 .095 .013 .011 .009 .008 .007 .006 .006 .006 .005 .005 .005 .004 .004 .004 .002 MMT16IR080NPT yAmerican NPTF (inch) Pitch Total Number of Passes Insert Type (thread/ Cutting inch) Depth 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 G-class ground inserts 14 .053 .009 .008 .006 .006 .005 .005 .004 .004 .004 .002 MMT16IR140NPTF 11.5 .064 .009 .009 .007 .006 .005 .005 .005 .004 .004 .004 .004 .002 MMT16IR115NPTF 8 .094 .013 .011 .009 .007 .007 .006 .006 .006 .005 .005 .005 .004 .004 .004 .002 MMT16IR080NPTF 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 G019