Professional tool for commercial or occasional use T Bar / handle imperial allen keys T handle design increases turning power as well as providing a sure comfortable grip Ergonomic soft handle grip handles make it a lot more comfortable to use Manufactured from chrome vanadium steel for strength and durability Black oxide finish to prevent rust and corrosion resistance Comes in a metal storage stand / hanging rack for easy storage and transportation Imperial allen keys SET INCLUDES THE FOLLOWING SIZES - 3/32" Imperial Allen Key - Total length of the allen key 80mm - 7/64" Imperial Allen Key - Total length of the allen key 86mm - 1/8" Imperial Allen Key - Total length of the allen key 92mm - 9/64" Imperial Allen Key - Total length of the allen key 100mm - 5/32" Imperial Allen Key - Total length of the allen key 105mm - 3/16" Imperial Allen Key - Total length of the allen key 110mm - 7/32" Imperial Allen Key - Total length of the allen key 105mm - 1/4" Imperial Allen Key - Total length of the allen key 111mm - 5/16" Imperial Allen Key - Total length of the allen key 120mm - 3/8" Imperial Allen Key - Total length of the allen key 125mm Extra long allen keys for access into tight restricted areas