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Irwin 1/8"-1/2" Unibit Titanium Nitride Coated Stepdrill

Irwin 15101
SKU IRW-15101
Irwin 1/8"-1/2" Unibit Titanium Nitride Coated Stepdrill

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Automatically deburr holes while drilling with this 1/8"-1/2" Unibit Titanium Nitride Coated Stepdrill. The stepdrill's cool-running titanium nitride coating lasts longer than uncoated bits. Two-flute design allows for faster, smoother cutting.

  • Finish: Tin.
  • No. of Steps: 13.
  • Type: Stepdrill Bit.
  • Brand Name: Unibit.
  • Packing Type: Carded.
  • Shank Diameter: 1/4".
  • Cutting Edge Material: HSS.
  • Tool Shape: Tree-Step Drill.
  • Measurement Type: Fractional.
  • Material Thickness: 1/8" [Max].
  • Cutting Diameter: 1/8" [Min], 1/2" [Max].

Similar Drill Bit Products

Irwin 15101 Description

Automatically deburr holes while drilling with this 1/8"-1/2" Unibit Titanium Nitride Coated Stepdrill. The stepdrill's cool-running titanium nitride coating lasts longer than uncoated bits. Two-flute design allows for faster, smoother cutting.

  • Finish: Tin.
  • No. of Steps: 13.
  • Type: Stepdrill Bit.
  • Brand Name: Unibit.
  • Packing Type: Carded.
  • Shank Diameter: 1/4".
  • Cutting Edge Material: HSS.
  • Tool Shape: Tree-Step Drill.
  • Measurement Type: Fractional.
  • Material Thickness: 1/8" [Max].
  • Cutting Diameter: 1/8" [Min], 1/2" [Max].

Similar Drill Bit Products

$31.59Each
In Stock-

Ships between 02/26/2026 - 03/02/2026

Irwin
Visit The Irwin Store
See more Irwin Vise-Grip Step Drills

Product Specifications

Part Number15101, 585-15101
Weight0.09-lb
UPC038548151014

Shop Top 100 Tools & Hardware Products.

View other Drill Bit Best Sellers.

Manufacturer Description

1/8" - 1/2" Unibit Titanium Nitride Coated Stepdrill

  • Titanium Nitride finish causes less friction which increases speed and increases product life by 6X. New SpeedPoint tip provides 6X faster initial penetration time than before and eliminates the need for center punching. Single-fluted cutting edge assures
  • Cutting Diam: 1/8 in Min 1/2 in Max
  • Finish: TiN
  • Packing Type: Carded
  • Type: Step Drill Bit
  • Weight: 0.20 lb
Prop65
Important PROP 65 InformationWarning: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov. to CA residents.
Irwin 1/8"-1/2" Unibit Titanium Nitride Coated Stepdrill
$31.59Each
In Stock-

Ships between 02/26/2026 - 03/02/2026

Similar Drill Bit Products

Irwin 15101 Description

Automatically deburr holes while drilling with this 1/8"-1/2" Unibit Titanium Nitride Coated Stepdrill. The stepdrill's cool-running titanium nitride coating lasts longer than uncoated bits. Two-flute design allows for faster, smoother cutting.

  • Finish: Tin.
  • No. of Steps: 13.
  • Type: Stepdrill Bit.
  • Brand Name: Unibit.
  • Packing Type: Carded.
  • Shank Diameter: 1/4".
  • Cutting Edge Material: HSS.
  • Tool Shape: Tree-Step Drill.
  • Measurement Type: Fractional.
  • Material Thickness: 1/8" [Max].
  • Cutting Diameter: 1/8" [Min], 1/2" [Max].

Product Specifications

Irwin
Visit The Irwin Store
Part Number15101, 585-15101
Weight0.09-lb
UPC038548151014

Shop Top 100 Tools & Hardware Products.

View other Drill Bit Best Sellers.

Manufacturer Description

1/8" - 1/2" Unibit Titanium Nitride Coated Stepdrill

  • Titanium Nitride finish causes less friction which increases speed and increases product life by 6X. New SpeedPoint tip provides 6X faster initial penetration time than before and eliminates the need for center punching. Single-fluted cutting edge assures
  • Cutting Diam: 1/8 in Min 1/2 in Max
  • Finish: TiN
  • Packing Type: Carded
  • Type: Step Drill Bit
  • Weight: 0.20 lb
Prop65
Important PROP 65 InformationWarning: This product can expose you to chemicals, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov. to CA residents.

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