Crafted from carbon steel with an anti rust sprayed coating, this 6.35mm hexagonal shank bit holder incorporates a built in steel ball systems to slippage during operations enhanced work efficiency with this hexagonal extension rod featuring a fast change design for immediate tool swapping in various applications Perfect for automotive repairs, furniture assembly, and appliance maintenance where secure bit retention and rapid accessory changes are essential This robust extension rod delivers superior holding power and impacts resistance, ensuring long lasting as a cores component in your power tool set Ideal for professional mechanics, and workshop technicians requiring reliably power tool accessories for precise tasks, Manufacturer: ERRORY