This document discusses surgical instruments and provides examples. It is presented by Mr. Vijayreddy Vandali and introduces five classes of surgical instruments: cutting instruments and dissecting tools like scalpels and scissors; grasping tools like forceps; hemostatic instruments that control bleeding; retractors; and tools that unite tissues. Scalpels, specifically, are then described in more detail as the basic surgical knife that comes with detachable blades in various sizes for different procedures.