30492 is a 31 piece combination wrench tray set (SAE and metric). Wiha's combination wrenches have a 12-point box-end design with contact points that apply force to the flat sides of the fastener head—rather than the corners—to prevent the fastener head from rounding off. The open-end is angled 15 degrees for flipping the wrench between rotations to maximize rotations and the box-end offset 15 degrees for finger clearance and working around obstructions that limit access to the fastener. The wrenches consist of premium-quality tool steel, have a Chrome-plated satin finish for corrosion protection, and the size profiles are boldly stamped on the handle for easy identification. The tools come conveniently stored in a soft modular foam tray for secure, space-saving storage. The foam tray is designed with high visibility tool callouts printed on each tray to easily return tool to its location.