螺紋千分尺具有60 錐型和V型測(cè)頭,用于測(cè)量螺紋中徑。編號(hào)測(cè)量范圍讀數(shù)值質(zhì)量711-010-25mm0.01mm0.289-0225-50mm0.377-0350-75mm0.486-0475-100mm0.644-05100-125mm0.824-06125-150mm1.022-070-1in0.001in0.288-081-2in0.376-092-3in0.485-103-4in0.643-114-5in0.823-125-6in1.021