RJX 4PCS Hollow Handle Hex Screw driver Tools Kit Set 1.5mm / 2.0mm / 2.5mm / 3.0mm for RC Models Car Boat Airplane Specifications: Brand: RJXHOBBY Net Weight: 1.5mm: 31.5g 2.0mm: 32.5g 2.5mm: 32.6g 3.0mm: 33.8g Gross Weight of 1 set: 236g Total Length: 180mm Diameter of handle: 17.8mm Head Material: High Speed Steel Nano Titanium Plating Color: Gold / Red / Blue Features: Ultra-Lightweight: Ergonomic hollow handle design made from aluminum alloy, ensuring a comfortable, sure grip with less fatigue during extended use. High-Quality Material: Screwdriver heads made from high-speed steel (HSS) featuring nano-titanium plating for longevity and wear resistance. Versatile Utility: Perfect for disassembling hex screws in various RC models such as cars, boats, and airplanes, making it a go-to tool for hobbyists. Precision Engineering: The total length of 180mm and handle diameter of 17.8mm provide the right balance and leverage for precise operations. Color Choices: Available in three vibrant colors—Gold, Red, Blue—allowing you to pick the one that suits your style. Package Included: 1x RJX 1.5mm Hollow Handle Hex Screwdriver 1x RJX 2.0mm Hollow Handle Hex Screwdriver 1x RJX 2.5mm Hollow Handle Hex Screwdriver 1x RJX 3.0mm Hollow Handle Hex Screwdriver