Contact Browning.
Browning knives carry a limited lifetime warranty.
There is a website for Old Timer Knives. They offer a limited time warranty on their website. It can be found by doing a quick search.
They do.
Blackhawk knives come in many different styles for different occasions. Their warranty is limited, and they do not replace the product if the defects are caused by the owner.
Whether you should or not will depend on what Browning says in relation to their warranty.
I would assume because they are made in China.
Anywhere you find the cheapest knives.
You must contact Browning for the answer so you don't void your warranty
One can find information about a SOG knife at the SOG knives official website. They have information including a buyers guide, maintenance tips and warranty details.
Voids warranty.
They have a warranty that covers material defects or errors in workmanship. You can find the full page here: http://www.global-knife.com/registration/warranty.html
Ginsu knives typically come with a limited lifetime warranty, which covers defects in materials and workmanship. This warranty usually does not cover damage caused by misuse, abuse, or normal wear and tear. Customers should check the specific warranty details provided with their purchase, as terms may vary by model or retailer.