It is easy to operate without any tools DURABILITY: Tamper-proof design is extremely high quality, difficult to break even with significant force. About This Product Brady's clamp-on breaker lockouts are easy to install using patented thumbscrew design - no screwdrivers needed. They can be used in a variety of situations, including electrical and breaker lockout. Simply tighten lockout securely onto switch tongue, pull cover over thumbscrew and lock cover to prevent clamp from being loosened SIMPLE OPERATION: This circuit breaker locking plier can be used as a single locking device to securely hold the circuit breaker switch. Compact and highly visible UST-SPCBL01 Single-pole circuit breaker lockout Lock Out Tag Out Kit SAFBY Circuit Breaker Lockout Device - Lockout Nigeria | Ubuy Lock Out Kit PACKAGE INCLUDED: Includes 10 universal circuit breaker locking devices Veritas Snug Plug Cutter 3/8 | The Woodsmith Store Firmly grasps/secures toggles up to ⅝ x ½ in size, with a 19/64 padlock hole