Dear SharpCdn,
I don't want to give away any of our secrets, but we use a durable adhesive designed to withstand forces of impact. The worse thing you could do with anything glued is drop it, and our glued inlays hold up to that.
It takes longer to glue the inlays into the liners - each one has to be handled very carefully, versus lining the parts up, drilling and pinning the inlays on. Therefore we added a little extra charge for no rivets. We have built thousands of knives that way before and they appear to hold up to our lifetime warranty.
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pete quintanilla
Buck Knives, Inc.