Harbor Freight Tools


Black Oxide Step Drill Bit Set, 2 Piece

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Featuring a fast-start no-walk tip and dual flute design, get up to 2X longer life*

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BAUER™ Black Oxide Step Bits offer up to 2X longer life* for more drilling with less downtime. Premium alloy construction drills easily through metal, plastic and wood. The black oxide coating resists rust and corrosion. The step drill bits automatically deburr holes as you drill and the two-flute design provides faster, smoother cutting.

  • Black oxide coating for enhanced durability and performance
  • Fast-start no-walk tip starts drilling on contact
  • Automatically deburrs holes while drilling
  • Dual flute design cutting edges for greater control and rounder holes

Important Information

  • * Based on stated specifications of our standard product

64648, 64650, 64651
Black Oxide
M2 Steel
Shipping Weight
0.61 lb.
#4 - 12 Laser Engraved Hole Sizes: 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.,#5 - 11 Laser Engraved Hole Sizes: 1/4 in., 25/64 in., 35/64 in., 11/16 in., 13/16 in., 7/8 in., 1 in., 1-1/8 in., 1-7/32 in., 1-1/4 in., 1-3/8 in.
Shank size
3/8 in.
Note: Specifications are approximate and subject to change

We guarantee this product to be free from defects in materials and workmanship 90 days from the date of purchase. Limitations apply.