Threading Methods ■ External Threading (Left-hand Thread / Right-hand Thread) External Thread Toolholder Left-hand Toolholder Right-hand Insert Left-hand Insert Right-hand The direction The direction of spindle M04 of spindle M03 revolution revolution Toolholder Right-hand Toolholder Left-hand Insert Right-hand Insert Left-hand The direction The direction of spindle M04 of spindle M03 revolution revolution Left-hand Thread Toolholder Left-hand Right-hand Thread Toolholder Right-hand Insert Left-hand Insert Right-hand The direction The direction of spindle M03 of spindle M04 J revolution revolution Threading Toolholder Right-hand Toolholder Left-hand Insert Right-hand Insert Left-hand The direction The direction of spindle M03 of spindle M04 revolution revolution * These tables are based on KTN / KTNS / KTT / KTTX type Toolholder. ■ Internal Threading (Left-hand Thread / Right-hand Thread) Internal Thread Toolholder Left-hand Toolholder Right-hand Insert Left-hand Insert Right-hand The direction The direction of spindle M04 of spindle M03 revolution revolution Left-hand Thread Toolholder Right-hand Right-hand Thread Toolholder Left-hand Insert Right-hand Insert Left-hand The direction The direction of spindle M03 of spindle M04 revolution revolution * These tables are based on SIN / CIN type Toolholder. For KITG type (for large internal threading), Left-hand Insert for Right-hand Toolholder, Right-hand Insert for Left-hand Toolholder. J46