特点：测砧和心轴的端面为薄片型，可用于测量花键轴，键槽等不易测量位置的凹槽尺寸棘轮锁定装置可保持恒定测力10mm/rev快速心轴进给货号规格精度422-2300-25mm 测砧0.75X6mm+/-3um422-23125-50mm 测砧0.75X6mm+/-3um422-23250-75mm 测砧0.75X6mm+/-3um422-23375-100mm 测砧0.75X6mm+/-4um422-2600-25mm 测砧0.40X6mm+/-3um422-2700-25mm 硬质合金测砧0.75X6mm+/-3um422-2710-25mm 硬质合金测砧0.40X6mm+/-3um