The KING TONY 10F0VE-21 is a 21mm VDE insulated open end wrench designed for larger compatible fasteners encountered during professional electrical installation and maintenance. The fixed open jaw provides direct side access to 21mm hex nuts and bolts, which can be useful where surrounding components prevent a socket from being positioned over the fastener. Its insulated construction is intended for applications requiring correctly rated insulated hand tools. The dedicated size provides a more purpose-specific solution than an adjustable wrench for repeated 21mm fastening. It should be used by trained professionals following the appropriate electrical safety procedures.


