SDH1
1/8 In. to 1/2 In. High-Speed Steel Step Drill Bit
SDH10
1/4 In. to 1-3/8 In. High-Speed Steel Step Drill Bit
SDH11
1 1/8 In. High-Speed Steel Step Drill Bit
SDH2
3/16 In. to 7/8 In. High-Speed Steel Step Drill Bit
SDH3
1/4 In. to 3/4 In. High-Speed Steel Step Drill Bit
SDH4
1/4 In. to 7/8 In. High-Speed Steel Step Drill Bit
SDH5
7/8 In. High-Speed Steel Step Drill Bit
SDH6
3/16 In. to 1/2 In. High-Speed Steel Step Drill Bit
SDH7
9/16 In. to 1 In. High-Speed Steel Step Drill Bit
SDH8
1/2 In. High-Speed Steel Step Drill Bit
SDH9
3/16 In. to 1-3/8 In. High-Speed Steel Step Drill Bit