For threading black gas or galvanised iron pipes. Kit contains 4 die heads, 2-piece tubular steel handle and compact ratchet head. Cast-iron die heads with 4 alloy steel chasers per head for clean accurate thread cutting. Each die head has 4 swarf removal holes. Die sizes 13, 19, 25 and 32mm (1/2", 3/4", 1" and 1 1/4" BSP).