Description
Step Drill Bits; Tool Material: High-Speed Steel ; Number Of Hole Sizes: 12 ; Shank Type: Hex ; Flute Type: Concave ; Hole Diameter: 3/16 in; 1/4 in; 5/16 in; 3/8 in; 7/16 in; 1/2 in; 9/16 in; 5/8 in; 11/16 in; 3/4 in; 13/16 in; 7/8 in ; Series: HSTH-OX