This is the Revolution Design Racing Products 1/16" Ultra Wrench. Revolution Design Ultra Series wrenches feature a machined 7075 T6 handle that provides a great grip for your hand, while helping to reduce fatigue and eliminate the chance of blisters after hours of wrenching. The handle is black hard-anodized and features a laser etched RDRP logo.
The Red end cap indicates that its a imperial measurement tip, and the size of the tip is marked with large letters on the cap and tip for easy identification. But, the most important part of a good wrench is the tip. RDRP Ultra wrenches feature a high grade spring steel tip that will provide a long life and is precision ground for a tight fit on the fastener.