NPT Pipe Tap and Die Set 1/8" 1/4" 3/8" 1/2" 3/4" 1". NPT Tap and Die Set Include : 1/8"-27 1/4"-18 3/8"-18 1/2"-14 3/4"-14 1"-11 1/2 NPT Pipe Tap is Made of High-quality and Durable M2 High-speed Steel NPT Die is Made of Carbon Steel and for Right Hand use A portable plastic tool box is provided for convenient storage and carrying of your NPT Pipe and Die Set. As our valued customer, we will do our best to make sure the product you receive arrives to you on time and as expected.