Klein Tools 70550 Folding Hex Key Set, 1 5 Pieces, Folding, SAE, Std End, Long, 1 Pieces, Folding Holder 463973 Whether you need to retrieve Whether you need to retrieve your keys from between couch cushions or find out what's making that strange noise under your car hood 4 Degrees to 122 Degrees F Resolution 1 ppm Detects Ammonia For Detector Type Portable Measurement Range 0 to 500 ppm Sensor Type Electrochemical Sensor Life 1 yr Operating Temperature Maximum 140 Degrees F Compatible Detector Model Series GasBadge Pro Operating Temperature Minimum 40 Degrees F Series GasBadge Pro End Shape Hex Number of Pieces 11 Measurement Type SAE Handle Type Fold Up Finish Black Phosphate Includes (11) Fractional Inch Sized Keys Insulated No Handle Material Nylon Material Alloy Steel Key Shape Folding Handle Color Orange Grip Style Plain Non Sparking No Fastener Holding No Number of Ball Ends 0 Number of Tips 11 Container Type Folding Holder Container Features Comfortable Grip Conveniently Houses the Most Frequently Used Hex Key Sizes in One Set