SKU: 5195743575

Irwin Tools 10311ZR Unibit #11 7/8-Inch Step-Drill Bit, 3/8-Inch Shank

$66.83 $74.25
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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

Irwin Tools 10311ZR Unibit #11 7/8-Inch Step-Drill Bit, 3/8-Inch ShankUNIBIT 11 7 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 11 7/8" - 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 : 10311ZR

Item Weight : 0.8 ounces

Product Dimensions : 5.99 x 2.89 x 0.97 inches

Item model number : 10311ZR

Is Discontinued By Manufacturer : No

Size : #11 (7/8")

Color : Black

Style : High Speed Steel

Material : Stainless Steel

Item Package Quantity : 1

Measurement System : Inch

Batteries Included? : No

Batteries Required? : No

ASIN : B000628SNI

Customer Reviews : 4.3 out of 5 stars 3 ratings 4.3 out of 5 stars

Best Sellers Rank : #265,126 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #342 in Step Drill Bits

Date First Available : September 14, 2004

Brand : Irwin Tools

Item Dimensions LxWxH : 5.99 x 2.89 x 0.97 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: 5195743575

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4.8 ★★★★★
Based on 20 reviews
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Product Reviews
M
Verified Purchase
Mark
West Palm Beach, US
★★★★★ 5
Logitech Webcam with Mic
Size: 1 Pack, Style: 1080P/30 fps, 720p/30fps, Pattern: Webcam
Took less than a minute to setup. Worked on first attempt. Good picture quality. Good mic pickup. No issues. I have always had good luck with Logitech products and this purchase. Good choice, worth the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
K
Verified Purchase
Katrina Grates
San Leandro, US
★★★★★ 5
Great quality
Size: 1 Pack, Style: 1080P/30 fps, 720p/30fps, Pattern: Webcam
Use this at work and love it - good audio and visual quality and the perching mechanism works great on laptop or desktop!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
H
Verified Purchase
Howard Fleischmann
New York, US
★★★★★ 5
Good quality
Size: 1 Pack, Style: 1080P/30 fps, 720p/30fps, Pattern: Webcam
Works very well, easy to set up and adjust settings
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
C
Verified Purchase
Christopher
Lowell, US
★★★★★ 4
Solid performance, average low-light quality
Size: 1 Pack, Style: 1080P/30 fps, 720p/30fps, Pattern: Webcam
The Logitech C920x is a reliable webcam that delivers solid 1080p video quality for everyday use. Image clarity is good, colors look natural, and autofocus works well for video calls, streaming, and basic recording. Setup is straightforward and it works immediately with most conferencing and streaming software. The built-in microphones are usable for casual calls and pick up voices clearly in a quiet room. One downside is that performance in low-light conditions isn’t great. Without good lighting, the image can become grainy and lose detail, and the autofocus may hunt a bit. The microphones are also average at best and won’t replace a dedicated mic. Overall, it’s a dependable webcam that does what it’s known for, but proper lighting makes a big difference.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2026
M
Verified Purchase
Monika Patterson
West Palm Beach, US
★★★★★ 5
Surprisingly good quality for the price
Size: 1 Pack, Style: 1080P/30 fps, 720p/30fps, Pattern: Webcam, Size: 1 Pack, Style: 1080P/30 fps, 720p/30fps, Pattern: Webcam
I honestly wasn’t expecting much from this little webcam, but I’ve been pleasantly surprised by how good it looks once plugged in. The video quality is clear enough for Zoom calls, online classes, or everyday use, and setup was very simple. My laptop camera quality is terrible, so this was a noticeable upgrade right away. I also like that it clips securely onto the top of the screen and doesn’t feel bulky. The picture looked smoother and brighter than I expected for a budget-friendly webcam. I love how it folds up and is very adjustable. Overall, this ended up being a great little camera for the price and works well for basic streaming, meetings, and video chats.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026

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