This is a video showing comparison test of Impact Bits. VESSEL vs COMPETITORS The test has been done by fastening self-drilling screw into C-Channel Steel Steel Sheet until failure. Torsion Bit is invented because of high torque output of cordless impact driver. Now 18V becomes standard. It was 14V before, and was 10.8V even before as a standard. Now it’s 20V?! 36V?! Anyways, Bits need to be TOUGH enough to withstand high torque output from a power tool💪 VESSEL’s Impact Bits are one of the toug