Air down your tires to gain better offroad traction and use our high-performance gauge to ensure accurate PSI. Tire deflation is an essential step before heading to the beach to drive in the sand or hitting that muddy or rocky terrain. Decreasing the air pressure with tire deflation tools increases the traction area of your tire so you can have fun without getting stuck. Use our high-performance gauge to ensure accurate PSI of your tires after air down. High-Performance brass internal and externals with 360-degree swivel chuck. Reads 0-100psi.