A ceramic ball creates the interface between the blade locking surface and the integral locking arm surface. The ball doubles to drop into a detent on the blade to ensure the blade does not open accidentally.
Typical of CRK, the pivot strength is more robust than other folders. The large pivot screw and pin are supported by large thrust washers. These perforated phosphor bronze washers reduce friction and double to retain the fluorinated grease for longer lubrication thereby extending the life of the knife.
The thumb lug doubles as the stop pin, ensuring a solid lockup. Around the lug is a polyurethane o-ring that acts as a shock absorber to cushion the impact of the lug against the handle. Never wishing to copy other designs without giving credit, Grant and Gavin Hawk originated the shock absorber concept in one of their many innovative designs. We appreciate their consent for Chris to use this adaptation of their concept. SPECIFICATIONS: Blade Material: CPM S35VN Stainless Steel Blade Hardness: 58-59 RC Blade Finish: Stonewash Blade Length: 3.675" (93.35 mm) Blade Thickness: 0.140" (3.56 mm) Handle Length: 4.77" (121.16 mm) Handle Material: 6Al4V Titanium Handle Thickness: 0.150" (3.81 mm) Weight: 5 oz. (141.75 g) Fittings: 303 Stainless Steel Pocket Clip: 6Al4V Titanium. The item "Chris Reeve Knives UMNUMZAAN S35VN Heavy Duty Authorized Dealer" is in sale since Friday, July 29, 2016. This item is in the category "Collectibles\Knives, Swords & Blades\Collectible Folding Knives\Modern Folding Knives\Custom & Handmade". The seller is "bodromarsh" and is located in Austin, Texas. This item can be shipped worldwide.