Features: Engineered with 1000V insulation, this hexagonal driver ensuring electrical safety during live circuit maintenance and equipment repairs. The hexagonal socket design delivers superior grip on bolts while the ergonomic anti slip handle minimizes hand fatigue during extended use in tight spaces. Ideal for professional electricians, industrial maintenance technicians, and enthusiasts working with electrical panels, automotive systems, or machinery requiring insulated tools. Safely handle appliance installations, substation equipment adjustments, and automotive battery maintenance with the shockproof insulation and steel construction. Featuring wear resistant steel sockets and visual insulation indicators, combines heavy duty electrical protective standards. Specifications: Component:Metal Size: 4mm/5mm/5.5mm/6mm/7mm/8mm/9mm/10mm/11mm/12mm/13mm/14mm. Package Includes: 1Pc 1000V Insulated Socket note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.