Digital Angle Finder
This is a great tool for both machinists and woodworkers. Packed in a nylon carry case and sized 5-3/4 x 2 x 1-1/4" thick, this is accurate to within 1/10° and measures 0 to 90° on all four surfaces - including relative angles. The 3V lithium battery will give you 2,000 hours of continuous use. Calibration is simple and the instructions are clear and thorough. China.