SKU: 75740363306

Century Drill And Tool Cobalt Pro Grade Drill Bit 21/64″ Overall Length 4-5/8″

Sale price$10.97 Regular price$12.19
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jun 18 - Jun 23

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Description

Century Drill And Tool Cobalt Pro Grade Drill Bit 21/64″ Overall Length 4-5/8″Made from M35 steel with 5% cobalt, Centurys Cobalt drill bits are designed to cut through extremely hard metals, including stainless steel No center punch needed: Century 135 degree quick cut points are self centering and penetrate faster with less pressurewill not walk or wander at the starting surface Extremely heat resistant, must be used and operated in power units that have a RPM speed of 1,500 or more for maximum efficiency Made in the U. S. A.

Century Drill And Tool Cobalt Pro Grade Drill Bit 21/64 Overall Length 4-5/8
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: 75740363306

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4.6 ★★★★★
Based on 1779 reviews
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Product Reviews
J
Verified Purchase
Jon P Summers
Lake Worth, US
★★★★★ 4
Look very useful
Size: 0.16 x 1.42 ,0.24 x 1.77 ,0.35 x 2.36 Inch
Haven't actually used them yet, but they look like the perfect way to fix a flat. As can be seen they come in various sizes depending on what you will need. All you need to get is some tire patch rubber cement and a good inner tire sealer (I picked up a can of Xtra Seal)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2024
Z
Verified Purchase
Zac Briggs
Omaha, US
★★★★★ 5
Saved me from buying a tire
Size: 0.16 x 1.42 ,0.24 x 1.77 ,0.35 x 2.36 Inch, Size: 0.16 x 1.42 ,0.24 x 1.77 ,0.35 x 2.36 Inch
Took our ancient van on a trip to Florida (from IL) and wouldn't you know we picked up some debris in construction. I was able to plug it however the next morning it was flat again. This time I used 2 plugs to and we were able to get home on that. Realizing this wasn't what I wanted my wife driving around and I didn't wanna buy tires for a van with 250k on it I set out to find some internal patches. I pulled the tire off using a harbor freight bead breaker and some motion pro spoons, used vulcanizing Compound and a dremel and patched it right up. Once the tire is off its a really easy process and I just marked my tire and rim to keep the balance close when it went back together. All appears to be working perfectly with no leaks over the past few weeks. This cost way less than a new tire and now I have more for other holes in the future
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Reviewed in the United States on August 2, 2024
B
Verified Purchase
ballpeen
Charlottesville, US
★★★★★ 5
Better than just a patch
Size: 0.16 x 1.42 ,0.24 x 1.77 ,0.35 x 2.36 Inch
Do what they are suppose to do, easy to use
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Reviewed in the United States on June 2, 2026
D
Verified Purchase
dtep955
Massapequa, US
★★★★★ 5
worked great for Me
Size: 0.16 x 1.42 ,0.24 x 1.77 ,0.35 x 2.36 Inch
I have only used two patches so far, and they have worked just fine, You do have to have some tools like a buffing wheel and the vulcanizing glue and a roller wheel to make these patches work as they should, but I am happy with these patches, especially since nobody will repair a motorcycle tire, so this is Your only way to fix them.
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Reviewed in the United States on September 24, 2025
R
Verified Purchase
Ruben vasquez
Pawtucket, US
★★★★★ 5
Patches
Size: 0.35 x 2.36 Inch
Good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026

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