CME 7 pc Adjustable Hand Reamer Set, M2 High-Speed Steel, 1/4" to 15/32" Reamer Sizes, Straight Flute

4 Flutes per Reamer; Straight Flute Used to precisely machine existing holes to an exact diameter M2 High-Speed Steel; Versatile tool steel featuring high toughness and excellent wear resistance Each reamer can be adjusted to a precise diameter Included sizes: 1/4"-9/32", 9/32"-5/16", 5/16"-11/32", 11/32"-3/8", 3/8"-13/32", 13/32"-7/16", 7/16"-15/32"