Sling swivel studs are a common feature of most riflestocks. Larry Potterfield, Founder and CEO of MidwayUSA, demonstrates the process of installing a set of Uncle Mikes brand swivel studs in a Winchester Model 67 riflestock. This process is a standard part of stockmaking, and one that every shooter should be familiar with.
In this video Kent Bergsma discusses possible reasons why your headlight may be building up moisture inside, and then demonstrates what he does to fix the problem on his own W220 chassis S500 Mercedes sedan. This is a common problem on many cars and the principles apply to many.