Socket Bit, Replaceable Insert No, SAE, Tip Size 3/4 in, Tip Style Slotted/ OVERALL LENGTH: 1.6250 INCHES NOMINAL TIP WIDTH: 0.750 INCHES NOMINAL DRIVE SURFACE SIZE: 0.500 INCHES NOMINAL SINGLE END TIP THICKNESS: 0.115 INCHES NOMINAL FEATURES PROVIDED: MANUAL TOOL HARDNESS RATING: 55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM WRENCHING SURFACE SHAPE: FLAT (SLOTTED) SINGLE END EXTERNAL ENVIRONMENTAL ATTRIBUTE CODE: SPECIAL FEATURES: FULL POLISH MATERIAL: STEEL OVERALL SURFACE TREATMENT: CHROMIUM OVERALL STYLE DESIGNATOR: 187A FLAT