In this article I will review the BSCTools Shimano Preload Tool Bit for Shimano Hollowtech II cranks. It is basically a 1/4″ bit with pre-loadcap-shape that can be used with the BSCTools SDH-1 screwdriver, or with the Hazet 2262 screwdriver with 1/4″ bitholder or the PB Swiss Tools PB 186.6-100M bitholder screwdriver.