Hexagon carburetor adjustment tool screwdriver for Stihl #5910 890 2307

Description

• Replacement manufacturer part number: 5910 890 2307
• Fits many STIHL saw / trimmer / edger / pole pruner that utilizes a 4mm Hex head carburetor jets
• Adjustment Tool is designed for Certified Technicians to tune carburetors
• Hex screw driver, please match your screw type before purchase