Boker Mini Magnum Black Automatic Knife Black Tanto Serrated. The blade on this amazing auto has been crafted from AUS 8 stainless steel and specially coated with a heavy duty finish. Each knife is serial numbered. Blade: AUS 8 Stainless Steel Blade Length: 2.5" Overall Length: 5.875" Closed Length: 3.25" Black handle and black blade Half serrated edge blade