PROTO 5256 ADAPTER 1/4 F X 3/8 M

PROTO 5256 - ADAPTER 1/4 F X 3/8 M - PROTO® SQUARE DRIVE ADAPTERS - - - DRIVE SIZE=1/4 IN (FEMALE SQUARE), 3/8 IN (MALE SQUARE)|CONNECTION NO.=|THREAD SIZE=|THREADS PER INCH=|OPENING SIZE=|OVERALL LENGTH=15/16 IN|HEAD WIDTH=|HEAD ANGLE=|LOCKING TYPE=BALL|MATERIAL=ALLOY STEEL|FINISH=NICKEL CH - EQUAL TO 577-5256