UNF and UNC Press Set perfectly for vehicle and material AFs. made from tungsten steel for strength and durability. ideal for creating and repairing foundation for popular and UNC threads. All taps and dies are etched with imperial sizes for quick and easy finding. the wrench has screw adjustment and is suitable for M3 M12 (1/16" 1/2") pre. The handle die has an inside diameter of 25mm (1") with screws holding the components securely in place. Is contained in a metal case with vacuum molded inlay for easy storage and transport as well as easy to find the right one size, quickly and efficiently.set includes: Tap and Die 1/8" NPT x 27 Tap and Die 3/8" x 16 UNC Tap and Die 3/8" UNF x 24 Tap and Die 1/4" x 20 UNC Tap Tap and Die 1/4" UNF x 28 Tap and Die 5/16" x 18 UNC Tap and Die 5/16" UNF x 24 Tap and Die 7/16" x 14 UNC Tap and Die 7/16" UNF x 20 Tap and die 1/2" x 12 UNC 1 x tap holder suitable for M3 M12 (1/16" 1/2") Total length 200mm 1 x die holder suitable for dies with 25mm (1") diameter, total length 200mm Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.