Irwin Tools IRWIN Unibit #21 13/16-Inch to 1-3/8-Inch Step-Drill Bit, 1/2-Inch Shank (10221), Black

Drill Doctor DDSB Spade and Twist Drill Bit Sharpener

Irwin 49998 6 Piece 1/4-Inch to 1-Inch Solid Center Auger Bit Assortment

Irwin Industrial Tools 3046005 1-1/8-Inch 3-Cutter Self Feed Drill Bit

This Old House

Irwin Industrial Tools 10232CB Unibit 1/16-Inch 6-Steps Cobalt Step Drill Bit

Irwin Tools Unibit #4 3/16-Inch to 7/8-Inch Step-Drill Bit, 3/8-Inch Shank (10234)

Irwin Tools Unibit #20 9/16-Inch to 1-Inch Step-Drill Bit, 1/2-Inch Shank (10220)

Irwin Tools Unibit #1 1/8-Inch to 1/2-Inch Step-Drill Bit, 1/4-Inch Shank (10231)

Sloan C-100500-K Flushmate Flush Valve Cartridge Assembly

Neiko 10288A Master Hex Bit Socket Set, S2 Steel | 32-Piece Set | SAE and Metric

DYMO Authentic Industrial Heat Shrink Tubes for LabelWriter and Industrial Label Makers, Black on White, 1/2", (18055)

IRWIN Unibit High-Speed Steel Fractional Self-Starting Step-Drill #5, 10235

Irwin Industrial Tools 10234CB #4 Unibit 3/16- Inch – 7/8-Inch, 12-Steps Cobalt Step Drill Bit (1/16- Inch Steps)