The ColumPRO 3/4" (19mm) Strut Channel Socket is built for professionals who demand power, precision, and durability. Designed to fit 1-5/8", 2-7/16", and 3-1/4" Unistrut and metal framing channels, it's the go-to solution for electricians, HVAC technicians, plumbers, and contractors working with heavy-duty strut systems. Constructed from premium Cr-Mo (Chrome Molybdenum) steel, this socket offers superior impact strength and torque resistance compared to standard Cr-V steel. The black phosphate finish enhances corrosion resistance and maintains smooth operation even after extended use. With a 4-1/4" overall length, it provides the extra reach needed for deep channels while ensuring precise fitment and easy access. Compatible with 1/2" drive impact wrenches and ratchets, it delivers consistent, professional-grade performance in every fastening task. Whether you're assembling conduit systems, mounting support frames, or tightening Unistrut connections, the ColumPRO Cr-Mo Impact Socket is a reliable, long-lasting addition to your tool kit—engineered to handle the toughest jobs with confidence.