Astro Pneumatic 78254 10-Piece 1/2" Drive Metric Pinless Universal Extension Socket Set

9" long 1/2" drive 6-point pinless impact universal extension sockets Heavy-Duty TORQUE-SAVER design utilizes overbuilt joint design & extension shaft size used only by Astro to minimize torque loss and ensure maximum durability Enjoy up to 30% more torque delivered to fasteners when used at max angle and 20% more when used straight compared to other equal length universal extension sockets Forged Cro-Mo construction, durable 100% pinless design with 360° of freedom