This hex screwdriver wrench set includes 4 hex nut drivers (1.5mm, 2.0mm, 2.5mm, 3.0mm) packaged in a foam padded box for easy management and storage. The features an HSS steel tip, which is extra-hard, to deformation and can withstand prolonged wrench abuse. Hollow Honeycomb Handle Design - Honeycomb processed handle is . Tip dimensions are etched on the handle for easy identification. There is a screw that holds the tip in place, so you can be sure it 't come loose or fall off. perfect for RC cars, RC boats, RC helicopters, RC quadcopters, multi-axis FPV racing drones and more. It will give your workbench a major upgrade. Colour:Black Material:Aluminum Alloy Package Contents: 4 x Hexagon Screwdriver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.