The Performance W4001DB 40-Piece SAE Tap and Die Set uses high quality steel for precision cutting and durability. Features: High quality steel taps and dies What's In The Box: 4-40 NC #43 Tap and Die 6-32NC #36 Tap and Die 8-32 NC 9/64-inch Tap and Die 10-24 NC 5/32-inch Tap and Die 10-31 NF 11/64-inch Tap and Die 12-24 NC 3/1-inch Tap and Die 1/4-20 NC 13/64-inch Tap and Die 1/4-28 NF 7/32-inch Tap and Die 5/16-18 NC 17/64-inch Tap and Die 5/16-24 NF 9/32-inch Tap and Die 3/8-16 NC 5/16-inch Tap and Die 3/8-24 NF 21/64-inch Tap and Die 7/16-14 NC 3/8-inch Tap and Die 7/16-20 NF 25/64-inch Tap and Die 1/2-13 NC 27/64-inch Tap and Die 1/2-20 NF 29/64-inch Tap and Die 1/8-27 NPT 21/64-inch Tap and Die Tap Wrench T-Handle Tap Wrench Die Stock Screwdriver Screw Pitch Gauge Blow Molded Storage Case