Learn more about W.R. Case and Sons Take on tough tasks with a rugged Ridgeback Knife from W.R. Case Sons. Known for their quality and craftsmanship, theyre often handed down from one generation to the next. Rugged Zytel handles offer a sure grip in wet and dry conditions. Ballistic-nylon sheath for easy carry. Made in USA. Available: Caper Concave caper blade. Blade length: 3.68. OAL: 8. Wt: 4 oz. Drop Point Traditional drop-point blade. Blade length: 4.13. OAL: 8.5. Wt: 4.4 oz. Swept Skinner Lightweight skinner blade. Blade length: 4.13. OAL: 8.5. Wt: 2.5 oz.