Gorilla Expanding Foam Aerosol 400ml 99 5806 84453 3 8in Drive X Core Pinless XA BLA 84453 3 8in Drive X Core Pinless Universal Joint Impact Extension Set 6in 9in & 12in X Core pinless joint design for increased strength and durability Universal joint extensions can be used with any socket style 30 deg maximum operating flex angle Smooth 360 deg rotation for easier access Ball detent for secure socket retention Chrome molybdenum alloy steel (Cr Mo) for exceptional strength and long lasting durability Black oxide finish to resist corrosion High visibility laser etched markings provide quick size identification Meets or exceeds ASME specifications Includes tray for storage and organization Modern aluminium alloy engines require a non corrosive antifreeze solution FULAFOAM Expanding Foam Aerosol 400ml Gorilla Expanding foam aerosol insulates when filling cavities High thermal and acoustical insulation