These are a brand new locking air chucks. Its solid brass locking air chuck is a high quality hose attachment for easily inflating tires. Featuring a solid brass construction, its precision machined for leak proof operation. The air chucks feature a 45 degree angled head with a lever that locks the chuck to your valve stem and allows you to fill air easily into the valve stem. Air chuck has a 1/4" Female NPT air inlet. (Note: 1/4" NPT threads measure about 1/2" in diameter.).
