This hex key is insulated. The plastic handle is four inches long, is red and has a plain style/type. It meets the standards for ASTM F-1505-10, CSA, DIN 7437, EN/IEC 60900, NFPA70E, OSHA 29 CFR1910, VDE 0682/part 201. In addition, it is made of alloy steel, has a metric measurement type, is corrosion-resistant, has a black oxide finish, plus it is not non-sparking, is non-magnetic, and is not tether ready.