1" Dr. SAE & Metric Socket Set 10 Pcs High Quality Steel: Crafted from Cold-forged Cr-MO Steel to endure vibrations and impacts, preventing damage and extending both socket and anvil tool life.. 6-Point Lock-On Design: Offers a robust, pin less connection for distributing high-torque with professional strength, preventing fastener damage. Compatible with both impact drivers and manual tools.. High Visibility Etched: Boasts prominently marked sizes that ensure effortless readability, even in dim conditions. Bid farewell to time wasted on socket identification guesswork.. Chamfered Openings: Facilitate effortless connection between the drive tool and the fastener. 1300-SS-09