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6A922 UNIBIT 4 UNSPSC # 27112801

Step Drill Bit, High Speed Steel, Black Oxide, 3/16 in to 7/8 in Size Range

  • Item # 6A922
  • Mfr. Model # UNIBIT 4
  • UNSPSC # 27112801
  • Catalog Page # 704 704
Country of Origin USA. Country of Origin is subject to change.

The shanks on these step drill bits have three flats that help prevent the bits from slipping in the drill chuck during drilling. These cone-shaped bits have steps of increasing diameter marked along their cutting head. As each bit is pushed into a piece of sheet metal or other thin material, each step on the bit widens the hole. The bits also have a self-starting split point that prevents the bits from moving, or walking, when starting to drill, which eliminates the need for using a center drill to create a starter hole before drilling.

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Step Drill Bit, High Speed Steel, Black Oxide, 3/16 in to 7/8 in Size Range

  • Item # 6A922
  • Mfr. Model # UNIBIT 4
  • UNSPSC # 27112801
  • Catalog Page # 704 704
Country of Origin USA. Country of Origin is subject to change.

The shanks on these step drill bits have three flats that help prevent the bits from slipping in the drill chuck during drilling. These cone-shaped bits have steps of increasing diameter marked along their cutting head. As each bit is pushed into a piece of sheet metal or other thin material, each step on the bit widens the hole. The bits also have a self-starting split point that prevents the bits from moving, or walking, when starting to drill, which eliminates the need for using a center drill to create a starter hole before drilling.

Technical Specs

  • Item Step Drill Bit
  • Number Hole Sizes 12
  • Minimum Hole Size 3/16 in
  • Maximum Hole Size 7/8 in
  • Material - Machining High Speed Steel
  • Drill Bit Sizes Included 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
  • Decimal Equivalent 0.1875, 0.25, 0.3125, 0.375, 0.4375, 0.5, 0.5625, 0.625, 0.6875, 0.75, 0.8125, 0.875
  • Measurement System Fractional Inch
  • Step Increments 1/16 in
  • Shank Type - Machining Straight with Three Flats
  • Shank Diameter 3/8 in
  • Overall Length 2 7/8 in
  • Maximum Drilling Depth 1/8 in
  • Finish - Machining Black Oxide
  • Impact Rated No
  • Primary Material Application Aluminum, Brass, Copper, Laminate, Plastic, Steel, Wood
  • Series UNIBIT
  • Sub Brand Unibit

The shanks on these step drill bits have three flats that help prevent the bits from slipping in the drill chuck during drilling. These cone-shaped bits have steps of increasing diameter marked along their cutting head. As each bit is pushed into a piece of sheet metal or other thin material, each step on the bit widens the hole. The bits also have a self-starting split point that prevents the bits from moving, or walking, when starting to drill, which eliminates the need for using a center drill to create a starter hole before drilling.

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