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279DEEP HOLE DRILLINGBasic Dimensions of NPHT and NPMT InsertsNPHTSW1INSLRENPMT%u2026LSNPMT...LW1REINSLNPMT%u2026RNPMT...RW1REINSLW %u2013 insert widthINSL %u2013 insert lengthRE %u2013 corner radiusS %u2013 insert thicknessExplanation of NPHT and NPMT Inserts DescriptionExample:NPHT 06 %u2013 03 %u2013 04 R %u2013 G %u2013 P IC9081 2 3 4 5 6 7 81 Insert TypeNPHT %u2013 peripheral insert (grounded)NPMT%u2013 central and intermediate insert (pressed)2 Insert Size (W)3 Insert Thickness (S)4 Corner Radius (RE)5 OrientationL %u2013 leftR %u2013 right6 Chipbreaker TypeG %u2013 generalHF %u2013 high feed7 Insert PositionP %u2013 peripheralI %u2013 intermediateC %u2013 central8 Grade