5 PCS Insulated Ring Gear Wrench Set is designed for safe and efficient tightening and loosening of fasteners in live electrical environments. Manufactured from premium Chrome Vanadium (Cr-V) steel with high-quality insulation, each wrench is rated for use up to 1000V AC and complies with IEC 60900/VDE safety standards. The ratcheting ring design allows faster operation in confined spaces without removing the wrench after every turn. This set is ideal for electricians, industrial maintenance, power utilities, switchgear servicing, and electrical panel installation.