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Description
Bordo 3843-S 90° HSS Cobalt Triple Flute Countersink Set 10-31mm, 5pcsTriple flute countersinks are ideal for countersinking and deburring in a wide range of materials including ferrous and non ferrous metals. The three fluted countersink is self centering with wide flutes and is used to provide a heavy chamfer in the entrance to a drilled hole. This may be required to allow the correct seating for a countersunk head screw or to provide the lead in for a second machining operation such as tapping. 5 Pce 10 31mm 90
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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- Standard Shipping : 3-10 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
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.3 ★★★★★
Based on 1501 reviews
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Product Reviews
★★★★★ 5
Get protected!
Very easy to use and responsive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
★★★★★ 5
Very helpful
Good plan to have.
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Reviewed in the United States on February 21, 2026
★★★★★ 5
Asurion worked as intended.
After three years, my monitor failed. Asurion paid to send it to a repair center. I didn't save the box the monitor came in, and paid $23 to have it packaged up. They kept me informed of the various steps, such as en route, arrived, testing, and repair started. They discovered it could not economically be repaired and refunded my purchase price. The entire process from me telling them it was broken until the refund took 5 days. I am well satisfied with the service.
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Reviewed in the United States on August 31, 2025
★★★★★ 5
Excellent, prompt, zero hassle protection
I purchased a nice 3D printer for my grandson. He was thrilled and he and his dad used it frequently. The printer developed a serious problem but, thankfully, I had also purchased a three-year protection plan with Asurion. We shipped the printer to Asurion via UPS since they readily agreed to repair it or refund the purchase price. After only a few days, Asurion emailed me that the printer was not repairable. They sent me a link that enabled me to send the full purchase price to my Amazon account. I used it to purchase another printer. I am happy and my grandson is thrilled! I should add that the extended protection did not cover sales tax, nor did it cover shipping cost.
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Reviewed in the United States on March 8, 2026
★★★★★ 5
Strongly recommend
I recently used the services of this company, and I was completely satisfied. They work very professionally: whenever I reached out, they quickly resolved any issues. I strongly recommend that anyone who purchases electronic devices register their product with this insurance. It is truly reliable.
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Reviewed in the United States on June 8, 2026
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