日本三丰凹槽千分尺146系列特点1.千分尺心轴上带有凸缘，可用来测量凹槽内／外孔和管材内外凹槽深度和位置关系2.提供两种分度值分别用来进行内部和外部测量。3.心轴非旋转型带有双向的棘轮锁定装置。性能参数公制型旋转心轴型测量范围外部测量范围内部货号凸缘0-25mm1.6-26.5mm146-1216.35mm146-12212.7mm25-50mm26.5-51.5mm146-12312.7mm50-75mm51.5-76.5mm146-12412.7mm75-100mm76.5-101.5mm146-12512.7mm公制型非旋转心轴型测量范围外部测量范围内部货号凸缘0-25mm1.6-26.5mm146-2216.35mm146-22212.7mm25-50mm26.5-51.5mm146-22312.7mm50-75mm51.5-76.5mm146-22412.7mm75-100mm76.5-101.5mm146-22512.7mm