SHOCKWAVE impact duty™ magnetic nut drivers are engineered for extreme durability and up to 10X life. Made from proprietary steel and heat treated to control hardness, the SHOCKWAVE impact duty™ magnetic nut drivers feature a powerful magnet allowing for a secure grip and unyielding bit engagement. The bits feature colour-coded rings for quick and easy size identification and a chamfered edge to allow for fastening in tight spaces. Broadly targeting cordless users, the SHOCKWAVE impact duty™ accessory line is not only ideal for heavy duty impact applications, but delivers a full system solution for all the user's drilling and fastening needs. Proprietary steel and heat treat process for maximum strength and durability. Strong magnetic tip for secure grip. colour-coded band for easy size identification. Chamfered edge for fastening in tight spaces.