Usage Tips:Designed for ease and efficiency, the 32029 Pneumatic Bolt Breaker Set includes two sizes: 3/8inch and 1/2inch. compatible with most air , streamlining the process of loosening stubborn fasteners. This set features a dual-function design with both a 3/8inch and 1/2inch square drive for impact sockets on one end and a built-in hex (19mm-3/4-inch) on the shaft. Use an open-end wrench on the hex to provide additional torque for freeing seized hardware. Particularly useful in automotive and machinery applications, our bolt breakers excel in situations like bearing removal and caliper disassembly. The robust construction ensures reliability even in tough, rusted, or freeze conditions. Enhanced with air hammer compatibility to deliver vibrations that even the most stubborn or freeze fasteners and Torx bolts/nuts. The tool's design facilitates an easier, more effective way to tackle challenging repairs. The actual product may have slight color difference or difference, which not affect the use Colour:Black Material:Metal Package Contents: 2 x Pneumatic Bolt Breaker Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.