Review by: tonydevo, 2004-06-01
I've used and experiemented with the various sizes from 1/4"-5/8". I found them hard to place and set securely and very tought to extract after being loaded. This product seems more suited for construction than climbing but could have some limited application. If you were to be drilling on lead these might provide a method of quicker installation, drill 3/8" shallow hole--place RB--sit on it and drill a full length bolt--surely better than a hook!