SKU: 73788760935

Irwin Tools 15101 Unibit1T Titanium Nitride Coated 1/8-Inch to 1/2-Inch by 1/4-Inch Shank Step Drill Bit

Sale price$42.76 Regular price$47.51
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Description

Irwin Tools 15101 Unibit1T Titanium Nitride Coated 1/8-Inch to 1/2-Inch by 1/4-Inch Shank Step Drill BitStep Drill Bit, Material HSS, Titanium Nitride Finish, Number of Hole Sizes 13, Shank Size 1 4 In., Step Thickness 1 32 In., Size Range 1 8 In. to 1 2 In., Sizes Included 1 8 In., 5 32 In., 3 16 In., 7 32 In., 1 4 In., 9 32 In., 5 16 In., 11 32 In., 3 8 In., 13 32 In., 7 16 In., 15 32 In., 1 2 In., Number of Flutes 1, Shank Type Hex, Bit Length 3 1 8 In. UNIBIT 1T 13 Hole Sizes (1 8" 1 2"), 1 32" Increments Features Ideal for drilling holes into thin

Step Drill Bit, Material HSS, Titanium Nitride Finish, Number of Hole Sizes 13, Shank Size 1/4 In., Step Thickness 1/32 In., Size Range 1/8 In. to 1/2 In., Sizes Included 1/8 In., 5/32 In., 3/16 In., 7/32 In., 1/4 In., 9/32 In., 5/16 In., 11/32 In., 3/8 In., 13/32 In., 7/16 In., 15/32 In., 1/2 In., Number of Flutes 1, Shank Type Hex, Bit Length 3-1/8 In. UNIBIT 1T 13 Hole Sizes (1/8"-1/2"), 1/32" Increments

Features

  • Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates

  • Single-flute cutting edge for greater control through steps

  • 3 flatted shank prevents slipping in drill chuck

  • New SpeedPoint tip penetrates faster than previous Unibits and prevents walking

Specifications

Is Discontinued By Manufacturer : No

Product Dimensions : 5.5 x 2.51 x 0.4 inches; 0.35 Ounces

Item model number : 15101ZR

Date First Available : November 9, 2004

Manufacturer : IRWIN

ASIN : B0002NYBLO

Domestic Shipping : Item can be shipped within U.S.

International Shipping : This item can be shipped to select countries outside of the U.S. Learn More

Best Sellers Rank : #248,592 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #326 in Step Drill Bits

Customer Reviews : 4.3 out of 5 stars 10 ratings

Material : High Speed Steel

Brand : Irwin Tools

Item Dimensions LxWxH : 5.5 x 2.51 x 0.4 inches

Shank Type : Round With Flats

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: 73788760935

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4.8 ★★★★★
Based on 14 reviews
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Product Reviews
K
Verified Purchase
K. J. Keough
Phoenix, US
★★★★★ 5
Companion to the best map markers ever!
These are a must for minor corrections when using their pens!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2025
G
Verified Purchase
Gouda
Natrona Heights, US
★★★★★ 5
Didn’t know what to expect and was pleasantly surprised
Purchased to go along with the staedtler color markers. Mostly writing on laminate and loksaks. Works well and allows you to easily wipe off any permanent marker. Curious as to how long it’ll last. Keep a small cloth to wipe nib clean after use.
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Reviewed in the United States on February 21, 2025
D
Verified Purchase
Doug
Cuba, US
★★★★★ 1
Waste of money
What a waste of money this was. After receiving this I was excited to try it out, my excitement soon turned to disappointment. No matter what I did, the only thing that I could get to come out was clear liquid. It immediately went into the trash. Save your money and just go buy the BIC correction pen.
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Reviewed in the United States on March 29, 2026
M
Verified Purchase
Marvin
Dallas, US
★★★★★ 4
Works well
It works well to erase Staedtler permanent marker from an acetate map covering.
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Reviewed in the United States on November 4, 2025
T
Verified Purchase
TB
Alexandria, US
★★★★★ 5
Nice
Took longer than expected. But durable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 27, 2025

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