Professional impact sockets for commercial or occasional use Metric impact Allen key sockets Metric hex bits Metric sizes ranging from 4mm – 19mm Manufactured from chrome vanadium steel for maximum strength and durability 1/2" drive so will fit any 1/2" drive ratchet, extensions, bars, impact guns etc... Impacted so will stand use with high torque tools such as impact guns Stubby allen key bits so perfect for access in tight restricted areas Total length of the sockets 55mm Comes in a plastic size marked tray for easy storage, transportation and identification SET INCLUDES THE FOLLOWING SIZES • 4mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm, 14mm, 17mm and 19mm