Irwin Tools 15101 Unibit1T Titanium Nitride Coated 1/8-Inch to 1/2-Inch by 1/4-Inch Shank Step Drill Bit
SKU: 73788760935

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

$42.76 $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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4.3 ★★★★★
Based on 326 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Lake Worth, US
★★★★★ 5
Great interactive toy. Worth the price.
Color: Blue
Our Lab absolutely loves it. She throws it all over the house. It’s so fun to watch her play with it. It’s by far her favorite toy right now. It’s easy to charge and came with charging cable. It has a button to turn off and on and a couple different speeds. My parents got her a different one for Christmas and since she loved it so much we decided to get her another one. It’s pretty durable too. She normally rips through toys pretty quickly and both of the ones she has are still in good shape. No rips or tears. She hasn’t tried just chewing on it like she does her squeaky toys. She just throws it all around the house and chases it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
J
Verified Purchase
Jeremy Elston
Battle Creek, US
★★★★★ 4
Fun, enticing dog toy. As stated in description it won’t hold up for aggressive chewers
Color: Blue
Rating this based on description. My dog loved this toy. It was smaller than I had pictured in my head, but that was on me. I did read the description ahead of time, which clearly states this is not for aggressive chewers. My dog is trained not to rip toys apart so I wanted to give this a shot, but i guess just her jaw strength and teeth were too much. She carried it everywhere. I turned it on periodically. The movements are small, but enough for her to be captivated with the toy. It did mostly survive for about a day before I needed to take it away due to the Velcro opening. Once it started to pull apart she did chew a piece of the Velcro off. It might be helpful with a flap over design covering the Velcro. I have a singing Santa decoration like this where the Velcro is covered up and I have to pull it back a little to get to the Velcro opening. The gaps on the sides of the closure are a bit to large making it tempt my dog to pull and open it up. I wish there was a more durable option that could hold up to aggressive chewers, but this product was clear about that in the description. I think the opening to the batteries could use some improvement. Granted I do not have the perfect answer to fix this, but I am also not a toy designer.
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Reviewed in the United States on April 19, 2026
A
Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 5
My Dog Went Crazy Over This Electric Octopus Toy!
Color: Blue
I was worried sick my fur kid would be super bored home alone while I work, so when I stumbled on this electric octopus toy, I grabbed it right away—and it’s way better than I expected! Let’s start with the quality: the plush fabric feels soft and squishy but so sturdy. It’s not the cheap kind that sheds fur if you tug it, and the stitches are nice and neat. My dog loves chewing on toys, and he’s been playing with this for almost two weeks now—no pilling, no fraying. The durability’s seriously on point. Using it is totally hassle-free, too. It was already charged right out of the box—I just pressed the little button on the side, and it started moving. It has two modes: slow mode makes the octopus wiggle gently, like it’s crawling slowly. Fast mode? It wiggles and scurries around, and the speed’s perfect—my dog can keep up but still has to work a little. When he first saw it, he circled it three times, sniffed it, then backed up right away. He stared at it all cautious, even hid under the couch to spy on it for a bit. That little look was so funny and cute, I couldn’t stop laughing. Now they’re total best buds! Every morning, as soon as I turn the toy on, he runs over with his little bed in his mouth and plops down next to it, waiting for it to move. Sometimes the octopus crawls under the table, and he’ll paw at it for ages. If he can’t reach it, he’ll look up and bark at me like, “Hey, help me get it!” Watching him chase it around, jumping to pounce—his tail wags like a little flag the whole time. It makes the house feel so much livelier, and I don’t have to stress about him being lonely when he’s home alone anymore. Quick tips for all you fellow pet parents: First, the toy makes a tiny motor hum when it moves. It’s not loud, but if your dog’s super skittish or scared of small noises, give him a few days to get used to it. Second, always keep an eye on him while he plays. Mine tried to bite off one of the octopus’s tentacles once—I stopped him just in time. The toy has a motor inside, so you gotta make sure he doesn’t swallow any small parts. Oh, and the plush cover zips off! If it gets dirty, just throw it in warm water, wash it, and once it’s dry, it looks good as new. Super easy to clean. Overall, this electric octopus toy’s the best pet buy I’ve made lately. Great quality, no hassle to use, and it keeps my dog entertained for hours. Every time I see my fur kid’s happy little face while he plays, I think, “Man, this was totally worth the money.” Def recommend it to anyone who wants a fun little buddy for their dog!
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Reviewed in the United States on August 26, 2025
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 5
Good quality and safe for my pet! Lots of fun to play with!
Color: Blue
Worth buying for your pet! My American Bulldog wouldn’t leave it alone !
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Reviewed in the United States on June 11, 2026
K
Verified Purchase
Karyn Bennett
Fort Morgan, US
★★★★★ 4
Super fun but fabric not durable for rough play.
Color: Blue
My dog absolutely love this, but the octopus cloth fell apart within the first day. He doesn’t usually play rough with his toys, but he was able to shred this octopus fabric very easily. He was very passionate in his playfulness and he’s a big dog, but he was able to put massive holes in the fabric within the first hour of play. The Ball still works, however so hopefully we can find another toy to stick it in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026

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