Designed for heavy duty professional use, the Switchblade 10 Blade Replacement Kit includes 10 blades, two feed screws, two set screws, and a hex wrench. 2-9/16in. 10 Blade Replacement Kit comes with: (10) 2-9/16in. Switchblade Selfeed Bit Blades, (2) Feed Screw, (2) Set Screws, and (1) Hex Wrench