The Kincrome ratcheting open end gear spanner has all the benefits of standard spanners and more. The strong fine gear ratcheting ring end needs as little as 3.5° of sweep to move the fastener, a standard fixed ring end needs a minimum of 30°, or 8 times the area. Kincrome Gear Spanner ratcheting ring end has a Peripheral Drive™ configuration that virtually eliminates the rounding off of fasteners. The market leading narrow and thin head, combined with fine gear tooth design makes the Kincrome gear spanner suitable for working in tight and hard to access areas where a ratchet and socket will not fit. The ratcheting open end mechanism means you not only have a gear mechanism on the ring end of the spanner, but also at the open end. This significantly increases access on fasteners that don’t have the space around them to place the ring end of a spanner on. The ratcheting open end mechanism allows you to adjust the fastener without having to remove the spanner, which increases working speed and productivity.