ITEM NAME:29 Degree Acme Screw Thread Gauge Gage Tool Grinding Metalworker Welding Ruler Acme Standard Screw Thread Gauge, Hardened, 29 Degree Angle Features: 1.Standard gauge for grinding and setting tools when cutting Acme threads 2.Precision ground angles and edge Description: Acme thread inclination: 29 degree inclined angle Handy for use in grinding and setting screw cutting tools Product Size:86mm * 42mm / 3.39inch * 1.65 inch (L * W) 1 * 29 degree Acme Screw Thread Gauge.Handy for use in grinding and setting screw cutting tools. Also note that monitor settings may vary from computer to computer and may distort actual colors. Precision ground angles and edge.