Liner Lock AUS-8 Stainless Steel Blade Quick-Reverse Clip Blue Line Accent The PDK series of knives is the result of collaboration between law enforcement officers, ASP&';s product designers and knife engineering and manufacturing experts. Their goal was to create a practical, tough and dependable knife specifically for day-in, day-out police use. A tool of excellent quality, yet affordable for any officer.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }