Proto Metric Nut Driver - 12 MM X 2-7/8" J9212M-SBD

Proto's professional‑grade 12 mm solid‑shaft metric nut driver designed for precise fastening of metric hex fasteners in industrial, automotive, maintenance, and assembly applications. Engineered to meet ASME B107.110‑2012 professional hand tool standards, it features a polished chrome finish, a solid round shank for enhanced strength, and a comfortable blue fluted handle with color coding for fast size identification. With a balanced overall length ideal for both reach and control, the J9212M‑SBD delivers long‑lasting performance and dependable torque for technicians, mechanics, and tradespeople working with metric hardware.
Key Features
• Precision‑formed 12 mm hex tip engineered for accurate fit and secure engagement on metric fasteners
• Solid round‑shank construction enhances strength and resists twisting under torque
• Blue fluted ergonomic handle provides a secure, comfortable grip and improved torque control
• Polished chrome finish resists corrosion and simplifies cleanup on the job
• Color‑coded handle allows quick metric size identification in busy workspaces
• Built to meet ASME B107.110‑2012 professional hand tool standards for industrial reliability
• Approximately 172 mm overall length (~6‑3/4″) for balanced reach and control