Kobalt 129 Piece Standard (SAE) and Metric Combination Polished Chrome Mechanics Tool Set Ceiling Fan Downrod Q: What material are the Hex Shank Q: What material are the knobs made from Strong Performance: Class A fire rating Total Number of Pieces 129 Number of Drive Tools 74 Number of Extensions 1 Number of Sockets 71 Number of Quick Release Ratchets 2 Number of Wrenches 4 Case Type Hard Warranty Lifetime Number of Additional Tools Included 15 1 2 in Drive Ratchet Included No 3 4 in Drive Ratchet Included No Sub Brand N A Drive Type 6 point along with 6 and 12 point sockets New Improved Precise Pro90 Ratchet Our 90 tooth gear delivers a 4 ° precision swing that offers improved mobility in tight work spaces Constructed from chrome vanadium steel with professional grade high polish finish to ensure strength and durability Metric and SAE socket sizes are easy to identify with laser etched size call outs and color coded stripes to identify metric (blue) and SAE (red) measurements Quick release button on the 90 tooth ratchet allows for rapid socket and accessory changes Tools are organized in a blow molded case for convenient storage and easy transportation and protected by our hassle free lifetime guarantee Meets or exceeds ASME specifications Hassle free lifetime guarantee