[Features]● The tip is thinly processed, making it ideal for working with thin nuts and double nuts. ●When turning the bolt, the corner surface hits and the part that causes licking is received by the surface of the roller, so you can apply torque with peace of mind. ●Rollers are made of chrome-molybdenum steel, so they do not easily deform even when high torque is applied. ●Once the nut is adjusted, the epoch-making world-patented free ratchet mechanism that allows continuous work by simply twisting and repeating the wrist has been adopted. ●With strap hole convenient for fall prevention.