Features:
- Includes three most popular impact flip sockets, each featuring 2 sizes
- Drop forged chrome molybdenum steel for strength and durability
- For use with ½” drive extended anvil shank impact tools or with included ½” drive x 3” extension
- Thinner walls provide better access in tight areas
- Includes 17mm, 19mm, 21 mm, 3/4”, 13/16” and 7/8”
- Rounded internal corners for a tighter grip
- Embossed with sizes for easy identification
- Packaged in durable storage case 
LIFETIME WARRANTY on sockets