Proto J4986 Hex Key Set SAE, Short, 18 Pieces, Metal Box, Black Oxide, 2 Tips, 1 1 4 in to 6 1 4 in 623L03 Charge Type Auto On Off Charge Type Auto On Off Weather Resistant Minimum Performance Temperature 5 Degrees F Working Time 2 mo Cure Type Pressure Minimum Thickness 1 4 in Maximum Traffic Hours Not Applicable Maximum Thickness Not Applicable Maximum Performance Temperature 130 Degrees F Base Material Limestone Asphalt Mix VOC Content Range No VOC Application Temp Black Oxide Blade Material Alloy steel Finish Black Oxide Handle Material Alloy Steel Handle Type L Shape Includes Metal Box Insulated Uninsulated Uninsulated Measurement Type SAE Nonsparking No Number of Pieces 18 Shape Hex Hex Torx Key Product Grouping Hex Key Set Meets Exceeds ASME B18