Irwin Hanson 1841432 Combination ill/Die Set, 116 Pieces, #4-40 to 1/2-20 Tap Thread, #4-40 to 1/2-20 Die Thread, #43 to 1/4 in Drill, BSP/NPT/UNC/UNF Thread, Hexagon Die, Plug/Tapered Tap Chamfer

Irwin Hanson , 1841432, Combination Tap/Drill/Die Set, Measurement System: Metric/Imperial, 116 Piece, #4-40 to 1/2-20 Tap, #4-40 to 1/2-20 Die Thread, #43 to 1/4 in Drill, BSP/NPT/UNC/UNF Thread Standard, Hexagon Die Shape, Plug/Tapered Tap Chamfer, High Carbon Steel Tap, Mill Finish Die, Adjustable Die: Yes

At Irwin , we understand it's all about performance and you only get out of a tool what you put in a tool. The new Performance Threading System™ drive tools from Irwin Hanson are a prime example. With exceptional innovation, these threading tools are now easier to use, and aid in maintaining the high thread quality and durability professionals trust. The Irwin Hanson Performance Threading System™ drive tools have been engineered to make threading more efficient by reducing the setup time and the number of tools needed.