accuracy +/-20 sec, 0.0001 inch per inch.
any conveivable angles to these increments can be established. ideal for grinding and milling machine applications. precision ground. 1 degree increments to 5 degree, 5 degree increments to 30 degree set includes the following angles: 1deg,2deg,3deg,4deg,5deg, 10deg,15deg,20deg,25deg,30deg hardness: 55.