SKU: 84409582364

Irwin Tools - 10312ZR Unibit #12 3/8-Inch Step-Drill Bit, 1/4-Inch Shank (10312) Black

Sale price$25.25 Regular price$28.06
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

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Description

Irwin Tools - 10312ZR Unibit #12 3/8-Inch Step-Drill Bit, 1/4-Inch Shank (10312) BlackUNIBIT 12 3 8" Single Hole Size 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 Patented single flute cutting edge gives the user a true round hole every time 3 faltted shank prevents slipping in drill chuck New SpeedPoint tip penetrates faster than previous Unibits and prevents walking Specifications Manufacturer :

UNIBIT 12 3/8" - Single Hole Size

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

  • Patented single-flute cutting edge gives the user a true round hole every time

  • 3 faltted shank prevents slipping in drill chuck

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

Specifications

Manufacturer : IRWIN

Part Number : 10312ZR

Item Weight : 2 pounds

Product Dimensions : 8 x 8 x 8 inches

Item model number : 10312ZR

Is Discontinued By Manufacturer : No

Size : #12 (3/8")

Color : Black

Style : High Speed Steel

Material : Stainless Steel

Item Package Quantity : 1

Measurement System : Inch

Batteries Included? : No

Batteries Required? : No

ASIN : B00075PU3A

Customer Reviews : 4.7 out of 5 stars 20 ratings 4.7 out of 5 stars

Best Sellers Rank : #172,226 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #234 in Step Drill Bits

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

Date First Available : January 23, 2006

Brand : Irwin Tools

Item Dimensions LxWxH : 8 x 8 x 8 inches

Shank Type : Round

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: 84409582364

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4.2 ★★★★★
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TitothePinkTorpedo
Belleville, US
★★★★★ 5
Great Product for noise reduction in Auto Use.
Model: 36 SqFt(3.4 SqM)
I use this on many builds to dampen the metal echo in cars, vans, and trucks. Just one sheet in the center of a body panel is a huge difference maker. You can also cover the entire surface and get added insulation value. The noise is greatly depleted and it's easy to install with a roller tool. Looks Great when done. Good Product I will use again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 29, 2025
H
Verified Purchase
Hailyn Simpson
San Leandro, US
★★★★★ 5
so cute
Size: 7, Color: Brown Patent
very cute shoes i love them, the quality is great these are my first pairs of Steve Maddens and they did not disappoint. i wear size 7 but could’ve gone maybe a half size up if it was available, they run a little smaller but maybe i jus have huge feet lol, the color is so cute dark brown matches my purse. i haven’t wore them out yet so im not sure about comfort yet but not all heels are comfortable so who knows, pretty hurts !!!
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Reviewed in the United States on August 15, 2025
M
Verified Purchase
Mabazz
Whiting, US
★★★★★ 1
so uncomfortable
Size: 9, Color: Champagne
These shoes are cute but UNCOMFORTABLE. The toe thong makes them impossible to wear. I wore them for 5 minutes just trying them on and my feet hurt as I’m writing this. Couldn’t recommend less. Plus, the holes that the strap fits through aren’t lined up properly and are difficult to poke through. Felt like I got the made in china version.
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Reviewed in the United States on May 21, 2026
J
Verified Purchase
Jazmine Torres
Phoenix, US
★★★★★ 5
Gold heels 🌟
Size: 10, Color: Champagne, Size: 10, Color: Champagne
They are so comfy and cute match with every outfit!
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Reviewed in the United States on May 18, 2026
E
Verified Purchase
Elena
Dallas, US
★★★★★ 4
Cute but at what cost.
Size: 7.5, Color: Champagne
This is probably now the cutest pair of heels I own. But they are not comfortable by any means.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026

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