The SHOCKWAVE lineman's 3-in-1 distribution utility socket provides more secure, efficient fastening in all fastening environments and orientations. The socket features a 3-in-1 square design for single sided fastening, eliminating the drop hazard of removing the socket from the adapter to change sizes. The push and twist barrel lock allows for secure, one-handed size changes, even while wearing gloves. The socket features an interior debris shield that resists interior rust and corrosion from dirt, wood chips and moisture from the jobsite. Milwaukee Shockwave Lineman's 3-in-1 Distribution Utility Socket 49-66-5101