3/8" Sq. Dr. Extension Bar Length 300mm Pin type

Ko-ken extension bars exemplify precision engineering designed to extend reach and versatility across countless fastening applications. This 3/8 inch square drive extension bar features a substantial 300mm length, providing critical access to deeply recessed fasteners in engine bays, transmission housings, machinery assemblies, and confined spaces where direct ratchet access is impossible. Manufactured from premium chrome molybdenum steel through Ko-ken's advanced heat treatment process, this extension bar delivers exceptional strength and rigidity while resisting flexing and twisting under high torque loads. The traditional pin retention system provides secure socket engagement through a hardened steel retaining ball and spring mechanism, ensuring your sockets stay firmly attached during operation while allowing deliberate socket changes when needed, ideal for professional environments demanding reliable tool performance.

Specifications:

Attribute	Value
Input Drive Size	3/8"
Drive Shape	Square
Length	300mm
Type	Extension Bar
Pin Type	Yes