Its resistant finish and ergonomic design minimize tool slippage during operations, making it indispensable Features a inch, internal square drive bore for seamless compatibility with standard equipment, paired with a versatile extension for enhanced accessibility in tight spaces for, copper / water tube flaring tasks, and routine maintenance of air conditioners, refrigerators, and household appliances in workshops or field service scenarios Engineered with a multi size design and premium carbon steel construction, this socket wrench set with extension ensures for appliance maintenance Ideal for HVAC technicians, appliance repair specialists, and enthusiasts requiring tools for refrigeration repairs and copper tube modifications, Manufacturer: TFAOYS