Product description 1. Advanced heat treatment process and corrosion-resistant finish screwdriver bits are made to last with performance in strength and durability for your long time use. 2. Squared handles, which makes it easy to tell 1/4 turn increments on the mixture settings. 1/4 turn is typically the increments you want when trying to tune a carburetor. 3. Carburetor cleaning needles and cleaning brushes can be used to clean carburetor and fuel lines, hex wrench to disassemble your machine. 4. Excellent Designed tool carrying case with two-way zipper, keep the carburetor adjustment tools and carb cleaning kits well organized in one place. Package list: 21 Teeth Splined Carburetor Adjustment Tool*1 PC 7 Teeth Splined Carburetor Adjustment Tool*1 PC Single D Carburetor Adjustment Tool*1 PC Small Head Single D Carburetor Adjustment Tool*1 PC Double D Carburetor Adjustment Tool*1 PC Pac Man Carburetor Adjustment Tool*1 PC Small Head Pac Man Carburetor Adjustment Tool*1 PC Hexagon Carburetor Adjustment Tool*1 PC Shapda Carburetor Adjustment Tool*1 PC Six Star Carburetor Adjustment Tool*1 PC Carburetor Cleaning Kit*1 Set Cleaning Tool*1 Set Ignition Spark Tester*1 PC Carrying case*1 PC Excellent Ergonomic Design Built with squared handles, which makes it easy to tell 1/4 turn increments on the mixture settings. 1/4 turn is typically the increments you want when trying to tune a carburetor Overall length: 6-1/8 inch.(metal pole: 3 inch; plastic handle: 3-1/8 inch) Durable material and ergonomic design - Ergonomic designed handle provides convenience and comfort for working Must have for Common 2 Cycle Carburetor Engine: Can be used on ZAMA, Walbro, Ruixing, Huayi, STIHL, Husqvarna, Poulan, Sears, Craftsman Echo, Homelite, Ryobi, MTD, Troy-Bilt, Cub Cadet, Toro, Sears. String trimmer, chainsaw, leaf blower, hedge trimmer, edger, pole pruner weedeater and other machines that utilizes the carburetor adjustment tool. Cleaning Brush High Density Nylon Brushes Made of heavy duty density bylon and stainless steel.There are very tight spiral between the hair and the rod. No hair loss, spiral bristles, great access to the inner side, making the washing clearly and thoroughly. Special Spiral Design Great for cleaning out small rusted screw hole threads and tight inside comers. Cleaning Needle Flexible Handle with Different Dlameters Perfect for clearing out blockages or obstructions in the narrow passage of auto motorcycle carburetor. High-quality Stainless Steel Rust-proof, non-deforming with good elasticity. Ignition Spark Tester Must-have diagnostic tool for any engine with a spark plug，glows when there is spark HOW TO USE: -With engine off remove spark plug wire -Attach black connector spark plug -Insert metal end of tester into spark plug -Try to start the engine -If ignition circuit is complete, bulb will flash TIP: If you're testing in bright lighting conditions and not getting the right result, try again in a less bright environment Carburetor Cleaning Kit 13 Pieces Wire Set with Spiral Knurling With 13 different diameters, especially designed to clean out the tiny jets and carb passages from all dirt. It can be used for all small engine carbs like lawn mowers, chainsaws, weed waters etc. Comes with a lightweight, compact aluminum carrying case,eay to carry.