PE7024 | ProEquip 45pc Imperial Tap & Die Set (UNC/UNF) UNF/UNC Tap and Dies manufactured from Tungsten Alloy Steel. Suitable for cleaning and cutting threads on mild steel and aluminium. 45 Piece UNF & UNC Tungsten Alloy Steel 50mm / 2 Die Holder with 38mm / 1-1/2Adaptor Adjustable Tap Wrench M6-M25 (1/4 -1 ) T Type Tap Wrench 6mm 13mm Supplied in Metal Carry Case National Fine 1/4NF28 5/16NF24 3/8NF24 7/16NF20 1/2NF20 9/16NF18 5/8NF18 3/4NF16 7/8NF14 & 1NF14 National Coarse 1/4NC20 5/16NC18 3/8NC16 7/16NC14 1/2NC13 9/16NC12 5/8NC11 3/4NC10 7/8NC9 & 1NC8