SKU: 99125376561

IRWIN Unibit 3-Piece Set Step Drill Bit Set (3/16-in to 7/8-in)

Sale price$62.98 Regular price$69.98
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

IRWIN Unibit 3-Piece Set Step Drill Bit Set (3/16-in to 7/8-in)IRWIN Unibit Step Drill Bits are ideal for drilling holes into thin materials such as stainless steel or sheet metal. The 3 piece set includes 2 of the most common IRWIN Unibit Step Drill Bits along with the new double flute design #4 Unibit that offers 2X FASTER DRILLING. DRILL THROUGH A VARIETY OF MATERIALS Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates VERSATILE DESIGN FOR

IRWIN Unibit® Step Drill Bits are ideal for drilling holes into thin materials such as stainless steel or sheet metal. The 3 piece set includes 2 of the most common IRWIN Unibit Step Drill Bits along with the new double-flute design #4 Unibit that offers 2X FASTER DRILLING.

  • DRILL THROUGH A VARIETY OF MATERIALS Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates

  • VERSATILE DESIGN FOR PRECISE HOLES For drilling holes from 1/8-in to 7/8-in in diameter (3.2mm to 22.2mm). #1 has 13 steps 1/8-in to 1/2-in (3.2mm to 12.7mm) #4 has 12 steps 3/16-in to 7/8-in (4.7mm to 22.2mm)

  • SET INCLUDES One #1 single-flute step drill bit, one #4 single-flute step drill bit, one #4 double-flute step drill bit

  • REDUCED SLIPPING Shank design helps to prevents slipping in drill chuck

  • FASTER DRILLING #4 double-flute IRWIN Unibit only versus #4 single-flute IRWIN Unibit, average of first 10 holes in 1008 Steel

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 99125376561

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Verified Purchase
Jeremy Gardner
Phoenix, US
★★★★★ 5
Good for under the hood
Pretty good heavy duty block. It's got the rubber grommets for the smaller wire if needed.
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Reviewed in the United States on January 1, 2026
K
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Kindle Customer
Battle Creek, US
★★★★★ 5
Easy install
Excellent easy install
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Reviewed in the United States on February 11, 2026
C
Verified Purchase
Charles L
Bozeman, US
★★★★★ 5
These are best quality ones ever had since I did been doing car audio
Great quality and durability
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Reviewed in the United States on February 8, 2026
P
Verified Purchase
Patrick Osburn
Birmingham, US
★★★★★ 5
Well worth it
Very sturdy and well built.
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Reviewed in the United States on May 23, 2026
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Fidel Fausto
Dallas, US
★★★★★ 5
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Reviewed in the United States on April 28, 2025

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