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MB31-1/2 V-Belt Pulley Single Groove | BK30-1/2 Sheave
MB31-1/2 V-Belt Pulley Single Groove | BK30-1/2 Sheave
MB31-1/2 V-Belt Pulley Single Groove | BK30-1/2 Sheave
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MB31-1/2 V-Belt Pulley Single Groove | BK30-1/2 Sheave

Marsoni M251S
Sale price$25.44
Pay 4 payments of $6.36 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
MB31-1/2 V-Belt Pulley Single Groove | BK30-1/2 SheaveThis MB31 1 2 V Belt Pulley Single Groove is designed for power transmission with its grooved surface, allowing for maximum torque and performance. The BK30 1 2 Sheave is made from steel for improved durability and reliability. Perfect for industrial applications. Product Details : MB31 1 2 V Belt Pulley Single Groove BK30 1 2 Sheave Part No: MB31 1 2 Reference Number: BK30 1 2 Fixed Bore: 1 2" Outside Diameter: 3. 15" Belt Series: 4L A 5L B Groove: 1
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  • Fast: 2-3 business days
  • Express: 1-2 business days

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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
4.1 ★★★★★
Based on 1808 reviews
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Product Reviews
M
Verified Purchase
Mark B.
West Palm Beach, US
★★★★★ 4
Got what I paid for.
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
I dropped my drill with the bit installed. It broke quite easily. It was a relatively inexpensive so I can't complain. A higher quality harder metal would have earned 5 stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2025
A
Verified Purchase
Amazon Customer
Draper, US
★★★★★ 5
Great product
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
These bits are great. We use them every day e when patching or plugging tires. Having multiple sizes helps us match the bit to the patch we use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
M
Verified Purchase
Monty W. Parks
Carnegie, US
★★★★★ 5
Easy on the hands
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
These make it much easier to ream tires that have been punctured. It takes the stress off of your hands, forearms and elbows especially when you’re plugging higher ply tires.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 14, 2025
M
Verified Purchase
Manny
New York, US
★★★★★ 5
Handy Tool for Frequent Flat Tire Repairs
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
Good quality and easy to use. As someone involved in emergency services, we deal with flat tires often, and this tool has been really helpful. The bits are sharp, durable, and make the repair process quicker and cleaner. Great to keep on hand for regular use or in a roadside kit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 14, 2025
J
Verified Purchase
Jeremiah
Birmingham, US
★★★★★ 5
Tire repair done right
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
Works well, for my high volume automotive repair store.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 28, 2025

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