XTA，XT3，XTH系列通用内径千分尺用加长杆。型号长度(mm)长度(inch)适合测头(mm)适合测头(inch)EGX0200632.56-101/4-3/8EGX00041506.050-3002-12EGX05001004.012.5-201/2-3/4EGX00011506.020-503/4-2EGX0400763.010-12.53/8-1/2)