VERSATILE TIRE INFLATION - Straight-on chuck with 12 Inch hose makes it easy to both inflate your tires and read your tire pressure. The air chuck comes loaded with: brass internal parts and a 1/4” (inch) inlet thread INDICTAOR BAR - Brass indicator bar is calibrated to 10-90 psi in 2 psi increments FOR THE PROFESSIONAL - Use on commerical jobsites, in automotive shops or at home in the garage DIE-CAST ZINC CONSTRUCTION - Durable, and ready to last. Capable of sustaining long term, heavy-duty use INLET SIZE - 1/4” (inch)