Features Purpose: Effectively use compressed air as power to tighten or loosen bolts and nuts. Good quality: small size and light weight, ideal for narrow spaces. Simple to use: lever control, easy to use and variable tor-que adjustment. Stable performance: easy operation and good mechanical performance. Scope of application: suitable for shipbuilding, machinery manufacturing and automobile industry. Features: Use compressed air as power to tighten or loosen bolts and nuts. Compact size and light weight, ideal for tight spaces. Lever control for easy use and variable torsion adjustment. Easy to operate, good mechanical performance. Suitable for shipbuilding, machinery manufacturing and auto industry and other fields. Specification: Material: Aluminum alloy & Iron & Steel Weight: Approx. 450g/15.9oz Square Drive Size: 3/8"  Speed: 300rpm Gas consumption: 3.0cfm Torsion: 16ft-lbs   Inlet connection: 1/4" Air pressure: 90psi  Rotation: Positive and negative rotation Overall Length: 12.7cm/5inch Notes: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.  Please allow 1-3cm measuring deviation due to manual measurement. Thank you for your understanding! Packing List: 1 x Pneumatic Air Ratchet Wrench 1 x 1/4" Inlet Connection   Package List