Tricks With Tools on Instagram: "What exactly is knurling? This hypnotic process is called knurling, a manufacturing process that creates a textured pattern on a surface, usually a metal bar. This is done to improve grip or for a decorative finish. The next time you grab a tool with a grippy handle, you'll know exactly how it was made! #Knurling #Manufacturing #Machining #Engineering #OddlySatisfying #ProcessVideo #HowItsMade #CNC #Metalworking #Satisfying"