3/8" to 1" capacity. 1 each of 3/8", 1/2", 3/4" and 1" drop head dies. Head locks in or releases by pull of ratchet knob. Separate sets of alloy steel chaser dies quickly removed or reversed for close-to-wall threads. No. 36355: Die Size: 3/8", 1/2", 3/4" , 1", Pkg Qty: 1, Package Type: Hang Tag