Tork Craft Socket Bit 1/2′ Drive Spline M9 S2 Material

At a Glance: 1/2′ drive spline M9 socket bit in S2 steel for secure engagement and high-torque fastening.

The Tork Craft TC97009 spline socket bit is designed for driving M9 spline (triple square style) fasteners using a 1/2′ drive ratchet, breaker bar or torque tool—ideal for higher-torque applications where a strong, positive drive is essential. Spline fasteners are common in automotive and mechanical assemblies because the multi-point profile offers excellent torque transfer when fully seated, helping reduce slip and fastener damage. Made from durable S2 steel for strength and wear resistance, this socket bit is built to maintain a crisp profile under load, making it a reliable choice for tightening and removing stubborn spline fasteners with confidence.