At just 3.75" long, don't let size fool you. The Micro Stubby is packed full of features to get service techs out of sticky situations in the field. A built in bit driver was added so you can use it as a screw driver if needed. A 1/4" drive was added so you can use it as a crow foot socket. The Micro Stubby is certainly no replacement for a full tool kit, but its about as close as your going to get all while fitting in the palm of your hand. What's Included: Micro Stubby (SW72-19) Micro Stubby Pouch (P-CY-SW72-19) Bits NOT included Capacity: Minimum: 8mm or 5/16". Maximum: 19mm or 3/4". Features: Length: 3.75" or 152mm. Weight: .24lb or 95.25g. Built in 1/4" drive. Built in bit driver. Precision machined teeth. Self-adjusting. Ratchet action. Comfort contoured handle. Polished chrome finish.  Applications: Small nuts and bolts Supply lines Toilet bolts. Ideal for tight working conditions. Same torque class as a 1/4" drive ratchet. Use of cheater bars voids warranty.