Product Description Technical Information:Material:CrV steelDrive:1/4"Other:with inner and outer hex, ideal for working with electric screwdrivers and drilling machinesManufacturer Number:23703 Contents:1 x Proxxon 1/4" magnetic holder Manufacturer: PROXXON S.A. Härebierg 6-10 6868 Wecker Luxembourg office@proxxon.com