General Purpose Multi-Bit Offset Screwdriver, Slotted, Fixed, Number of Pieces 1/ OVERALL LENGTH: 4.188 INCHES NOMINAL TIP TYPE: FLAT TIP TIP WIDTH: 0.250 INCHES NOMINAL STYLE DESIGNATOR: BN3 OPPOSITE OFFSET, OPPOSITE ENDS, EACH OFFSET TIPPED SPECIFICATION/STANDARD DATA: 05047-ASME B107.600 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD