1/2in Dr. Cr-Mo Impact Extension 250mmL w/steel ball

Genius Tools Impact Extension Bar 250mm Length 1/2 Inch Drive Chrome Molybdenum Steel with Steel Ball Retention - 480250MB Impact Extension Bar This 1/2in drive impact extension bar adds 250mm (9.84in) of reach for impact-rated socket work. Built from Chromium Molybdenum Alloy Steel, it is designed for high strength, durability, and anti-corrosive performance in professional environments. A steel ball retention design helps keep sockets securely engaged, while permanently stamped size markings support fast identification during service. Heat treatment through oil quenching and a matte black oxide finish provide a tough exterior and a strong inner core suited to long-term use. Key Benefits 250mm (9.84in) overall length improves access to hard-to-reach fasteners. 1/2in drive Cr-Mo construction built for impact tool demands. Steel ball retention helps keep sockets engaged during high-torque use. Oil-quenched heat treatment for durable exterior and strong inner core. Matte black oxide coating adds wear resistance with anti-corrosive protection. Permanently stamped size marking supports quick identification and organization. Meets or exceeds ANSI standards for consistent professional-grade performance. The combination of Cr-Mo alloy strength, retention security, and clear size stamping supports efficient work and reliable results over years of heavy use.