Qualtech DWT40PC-HS-ROUND Tap and Die Set, 40 pc, #4-40 to 1/2-20 Tap Thread, #4-40 to 1/2-20 Die Thread, UNC/UNF Thread, Round Die

Qualtech Tap and Die Set, Measurement System: Imperial, 40 Piece, #4-40 to 1/2-20 Tap, #4-40 to 1/2-20 Die Thread, UNC/UNF Thread Standard, Round Die Shape, Plug Tap Chamfer, HSS Tap, HSS Die, Bright Tap, Bright Die, Right Hand Cutting Direction, Case Package Type, Adjustable Die: Yes.