Multipurpose threading tools System Bar for micro internal threading VNT LU 1 RE IN DM WF WF2 PDX PDX PDX PDX WF2 60° LF H Right-hand shown Toolholder dimensions Dimension (mm) Tolerance Carbide Applicable thread Description RE RE PVD - Metric Unified DMIN H LF LU WF WF2 PDX RE min. max. Pitch Pitch PR930 PR1225 KW10 Nominal thread Nominal thread (mm) (TPI) 1/4-20UNC, VNTR 045-11 4.5 3.9 30.2 10.4 3.6 1.3 0.6 0.05 -0.02 0 N N N M6 and over 0.75~1.25 28~20 1/4-28UNF and over J 5/16-18UNC, VNTR 060-11 6 3.9 30 10.2 4.6 1.6 0.8 0.05 -0.02 0 N N N M8 and over 0.75~1.50 24~18 5/16-24UNF and over For applicable toolholder, see page F10-F13 Threading Recommended cutting conditions: J38 N : Standard item R : Right hand only L : Left hand only U : Check availability Number of passes and depth of cuts: J37 J35