The Milton Industries 39-pc 1/2" Drive SAE Standard and Deep Socket Set, No. 1300-SS, is crafted from cold-forged Cr-MO steel to endure vibrations and impacts, preventing damage and extending both socket and anvil tool life. Its 6-point lock-on design offers a pinless connection for distributing high-torque with professional strength to prevent fastener damage. The set is compatible with both impact drivers and manual tools. Each socket is laser etched with visibility in mind to mark sizes, ensuring readability even in dim conditions. Chamfered openings facilitate an effortless connection between the drive tool and the fastener.