Hex 4pcs Screw driver Tools Kit Set for RC Helicopter    
1.5MM 2.0MM 2.5MM 3.0MM Hex Screw include    
Diameter of handle: 18mm    
Total length: 180m    
Used for disassamble Hex Screw in helicoptor and other place    
Color: Gold

Including:    
1x 1.5mm Hex Key    
1x 2.0mm Hex Key    
1x 2.5mm Hex Key    
1x 3.0mm Hex Key