Blackhawk by Proto, a sub-brand of Stanley Proto industrial tools, is proud to announce a new concept in wrench design: Obstacle Insert Sets. Each set is built around the familiar reverse-ratcheting S-shaped wrench – a proven design for helping technicians work around obstructions in tight spaces – but includes adaptors that let the technician turn several fastener sizes with just one wrench body. Think of it as the box-end equivalent of a ratchet-and-socket socket set. Each set includes one 8-inch long wrench body, six flank adaptors, and an equal number of box heads. Each flank adaptor is designed to slip into one of the wrench openings, while each box head attaches to its corresponding flank adaptor. This system lets the user quickly change the size of the wrench opening. Sets are available in fractional (3/8 to 7/8 inch) and metric (10 mm to 22 mm) versions. All Blackhawk by Proto tools meet or exceed ANSI standards and are backed with a limited lifetime warranty. For more information call (800) 800-TOOL or visit www.stanleyproto.com.