WFHF HBH BH Threading Multipurpose threading tools TT for external and internal threading KTT LH LF 6° Right-hand shown | Right-hand Insert for Right-hand Toolholder, Left-hand Insert for Left-hand Toolholder. Toolholder dimensions Availabi-lity Dimension (mm) Spare partsClamp screwClamp screwWrench (Torx)Wrench (Torx)Wrench (hex.) Description R L H B LH HF HBH LF WF KTT& 1010F-16 N N 10 10 10 4 80 12 1212H-16 N N 12 12 12 2 16 SB-4070TRS - FT-10 -1001616H-16NN1616181620- J 2020K-16 N N 20 20 20 125 25 2525M-16 N N 25 25 25 150 30 SB-4TR - - FT-15 KTT& 2020K-22 N N 20 20 2025 125 25 - GS-50 - - LW-3 2525M-22 N N 25 25 25 150 30 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: J45 - J46 J33