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Irwin 3/16" - 7/8" Unibit Titanium Nitride Coated Stepdrill

Irwin 15104
SKU IRW-15104
Irwin 3/16" - 7/8" Unibit Titanium Nitride Coated Stepdrill

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Automatically deburr holes while drilling with this Titanium Nitride Coated Stepdrill. Its cool-running titanium nitride coating last longer than uncoated bits while its two-flute design allows for faster, smoother cutting.

  • Cutting Diameter: 3/16 in [Min], 7/8 in [Max].
  • Brand Name: Unibit.
  • Cutting Edge Material: HSS.
  • Finish: TiN.
  • Material Thickness: 3/8 in [Max].
  • Measurement Type: Fractional.
  • No. of Steps: 12.
  • Packing Type: Carded.
  • Shank Diameter: 3/8 in.
  • Tool Shape: Tree - Step Drill.
  • Type: Step Drill Bit.

Similar Drill Bit Products

Irwin 15104 Description

Automatically deburr holes while drilling with this Titanium Nitride Coated Stepdrill. Its cool-running titanium nitride coating last longer than uncoated bits while its two-flute design allows for faster, smoother cutting.

  • Cutting Diameter: 3/16 in [Min], 7/8 in [Max].
  • Brand Name: Unibit.
  • Cutting Edge Material: HSS.
  • Finish: TiN.
  • Material Thickness: 3/8 in [Max].
  • Measurement Type: Fractional.
  • No. of Steps: 12.
  • Packing Type: Carded.
  • Shank Diameter: 3/8 in.
  • Tool Shape: Tree - Step Drill.
  • Type: Step Drill Bit.

Similar Drill Bit Products

$62.83Each
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 Number15104, 585-15104
Weight0.23-lb
UPC385481510455

Shop Top 100 Tools & Hardware Products.

View other Drill Bit Best Sellers.

Manufacturer Description

3/16" - 7/8" 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: 3/16 in Min 7/8 in Max
  • Finish: TiN
  • Packing Type: Carded
  • Type: Step Drill Bit
  • Weight: 0.30 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 3/16" - 7/8" Unibit Titanium Nitride Coated Stepdrill
$62.83Each
In Stock-

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

Similar Drill Bit Products

Irwin 15104 Description

Automatically deburr holes while drilling with this Titanium Nitride Coated Stepdrill. Its cool-running titanium nitride coating last longer than uncoated bits while its two-flute design allows for faster, smoother cutting.

  • Cutting Diameter: 3/16 in [Min], 7/8 in [Max].
  • Brand Name: Unibit.
  • Cutting Edge Material: HSS.
  • Finish: TiN.
  • Material Thickness: 3/8 in [Max].
  • Measurement Type: Fractional.
  • No. of Steps: 12.
  • Packing Type: Carded.
  • Shank Diameter: 3/8 in.
  • Tool Shape: Tree - Step Drill.
  • Type: Step Drill Bit.

Product Specifications

Irwin
Visit The Irwin Store
Part Number15104, 585-15104
Weight0.23-lb
UPC385481510455

Shop Top 100 Tools & Hardware Products.

View other Drill Bit Best Sellers.

Manufacturer Description

3/16" - 7/8" 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: 3/16 in Min 7/8 in Max
  • Finish: TiN
  • Packing Type: Carded
  • Type: Step Drill Bit
  • Weight: 0.30 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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