Ridgid 48407 Roll Set for 11/4-inch to 11/2-inch Schedule 10/40 48407 Set Of Rolls 1-1/4 To 1-1/2 This item is used for Handtools & Tool Organizers ,Multitools This product manufacture by United States Roll Set for 1 1/4" to 1 1/2" Sch. 10/40. Tool box includes drive shaft, bolt and tools. For RIDGID 918 and 918-I Roll Groovers