Socket Bit, Replaceable Insert No, SAE, Tip Size 11/16 in, Tip Style Slotted/ OVERALL LENGTH: 1.031 INCHES NOMINAL TIP WIDTH: 0.688 INCHES NOMINAL DRIVE SURFACE SIZE: 0.375 INCHES NOMINAL SINGLE END TIP THICKNESS: 0.120 INCHES NOMINAL FEATURES PROVIDED: MANUAL TOOL WRENCHING SURFACE SHAPE: FLAT (SLOTTED) SINGLE END EXTERNAL SPECIAL FEATURES: DRAG LINK TYPE MATERIAL: STEEL OVERALL SURFACE TREATMENT: CHROMIUM OVERALL STYLE DESIGNATOR: 187A FLAT