Cobalt collar drill bit powder metallurgy direct drill imported high-precision steel parts stainless steel aluminum alloy GU500 PM

The high hardness of cobalt collar drill bits enables them to quickly cut materials during drilling, thereby improving work efficiency.
The wear resistance of cobalt collar alloy enables the drill bit to withstand long-term use without being easily damaged, reducing the frequency of drill bit replacement.
Cobalt collar drill bits are suitable for various materials, demonstrating their wide applicability.

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Pack

We pack all products following standardized procedures to ensure they are shipped according to our high-quality standards. We make every effort to ensure your product arrives safely at your home.

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 10 business days. Please remember it can take some time for your bank or credit card company to process and post the refund too.
If more than 15 business days have passed since we’ve approved your return, please contact us at Lily@yl-cnc.com.