SIZE1/4" (F) drive tools to 1/2" (M) drive sockets.. CR-V STEELMade from heat treated chrome vanadium steel with chrome finish for extra durability and corrosion-resistant.. SECURE HOLD ON SOCKETSChamfered ends and spring-loaded ball detent provides a secure hold onto sockets and prevents them from dropping.. PRACTICALDetent notches in drive ends grips onto ratchets and extensions making it a perfect fit for any industrial, mechanic, or construction work.. CornersCorners inside drive avoid stress concentrations that can cause cracking, suitable for use with hand tools and is not recommended for use with electric or air tools.
