At only 3-1/2" long this little ratcheting bit driver is the perfect tool for those tight spaces where a drill or screwdriver just won't fit. The Micro Bit Driver accepts any standard 1/4" hex-drive bit and includes 8 driver bits of its own. The ratcheting mechanism is extremely fine so it can be used even in confined spaces where the handle arc is very short. Offset handle also aids access to obstructed spaces.