Wiha’s Combination Wrenches feature a 12-point box-end designdoubles access-angles of a 6-point opening. Thepoint-contacts apply force to the flat sides of the fastener head—rather thanthe corners—to prevent the fastener head from rounding off. The open-end is angled 15 degrees for flipping the wrenchbetween rotations to maximize rotations and the box-end offset 15 degrees forfinger clearance and working around obstructions that limit access to thefastener. The wrenches consist of premium-quality tool steel, have aChrome-plated satin finish for corrosion protection, and the size profiles areboldly stamped on the handle for easy identification. Designed and engineered by Wiha Germany, manufactured by Wihaglobally and are backed by the Wiha No Hassle Guarantee.