3.Measure thread angle of thread cutter, thread chaser and thread milling cutter, various templet milling cutter, figure angle of different shapes of templet, etc.

• 3.；测量螺纹车刀、螺纹梳形车刀、螺纹铣刀的螺形角、各种样板铣刀和各种形状的样板的轮廓角等。