Specification: Material: HSS Screwdriver bit, Zinc Alloy cross hex socket, Metal 17mm hex wrench. Screwdriver Tips' Dia: 1.5mm, 2.0mm, 2.5mm, 3.0mm. Cross Hex Socket: Suitable for disassembly and installation of 4mm, 5mm, 5.5mm, 7mm nuts. Compatible with: Repair Tools for 1/8 Scale Hobby Cars, Trucks, Buggies, Removing & installation Hex Nuts. Features: Light and compact, can be a pocket tool and take it to anywhere. CNC machined for precision, Easy upgrade from the original part. Could use for most brands 1/8 models, resistant to stripping & breaking, rust-free. High hardness, good wear resistance, durable, with a long-term service life. Package List: 1 x 17mm Hex Wrench, 1 x Cross Hex Socket, 1 x 4 in 1 Screwdrivers.