10 Pcs Carburetor Adjustment Tool Screwdriver Kit for Common 2 Cycle CarburatorIndispensable for who is maintaining personal equipment plus stuff for friends, family to keep engine in good performance: ZAMA, Walbro, STHIL, Husqvarna, Poulan, Weedeater, Echo, Homelite, Ryobi, MTD, Troy Bilt, Cub Cadet, Toro, Sears; String trimmer, chainsaw, leaf blower, hedge trimmer, edger, pole pruner and anything else that utilizes the carburetor adjustment tools. Specifications Handle length: 4 inch Screwdriver bit length: 2 3 4 inch