【Extra 3/8 Inch Brass Adapter】The rafter hook comes with 1/4" MNPT thread and an extra 3/8" brass adapter. Fits most air tools with a standard 1/4"or 3/8" FNPT, like Air Nailer, Air Hammer, Air Blow Gun ETC. 【360° Swivel Air Fitting】The hook features 360 degree swivel quick plug that easily rotates the handle, enabling the air hose or pneumatic tool to rotate freely in any direction. 【Free Your Hands】When you're working on ladder or scaffolding, you'll need place to put or hang your nail gun or other pneumatic tool. This "L" shaped rafter hook will help you securely hang your tools on ladders, frames, or even straps. This is more convenient for you and saves time and effort when reaching for air tools. 【Lightweight But Sturdy】: The hook is made of 5mm thick aluminum alloy and the swivel fitting is stainless steel, which makes for an overall lightweight but sturdy. Rustproof, durable, and strong. 【Wide Application】This pneumatic tool rafter hook holder is not only for nail gun, it can almost work for variety air tools like air deburring tool, air blow gun, air hammer, air impact wrench etc. Portable Universal Head Includes accessories: a 3/8NPT brass adapter, a pneumatic tool rafter hook hanger with 1/4 inch and 360° swivel air connectors. Application Scenario: can be used in nail guns, pneumatic burr tools, air blow guns, air hammers, pneumatic impact wrenches, tyre inflators, etc. When you need a place to hang your nail gun or other pneumatic tools when working on a ladder or even a handstand, this L-shaped rafter hook will help you securely hook your tools to the ladder, thus securing the belt to the strap. You no longer need to bend down to pick up your tools! The hook is made from 5mm thick aluminium alloy with a heavy duty stainless steel swivel joint, making the whole thing lightweight but strong. Rust-proof, durable and sturdy, the quality rafter hooks will stay with your air tools for years to come.