Center Punch, 4-3/4 L x 1/4 In Hex/ OVERALL LENGTH: 4.000 INCHES MINIMUM SHANK SHAPE: HEXAGON SHANK WIDTH ACROSS FLATS: 0.500 INCHES NOMINAL POINT SIZE: 0.219 INCHES ENVIRONMENTAL ATTRIBUTE CODE: SPECIAL FEATURES: SHANK SHAPE MAY ALSO BE ROUND, SQUARE OR OCTAGONAL MATERIAL: STEEL SPECIFICATION/STANDARD DATA: 05047-ASME B107.410 CAT 48 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 3 CLASS