APEX 01944 SCKT 1/4 MALE HEXDRV 3/8 MALE SQ OAL EX-255-B-6
Drive extensions from Apex® Fastener Tools have hex tolerances that are on average 48% tighter than DIN and 35% tighter than ANSI requirements All Apex® drive extensions have the tightest tolerances for straightness and concentricity in the industry.