這個刻度指示器安裝在多功能支臂上，可以讀取到0.01毫米的精度，提供更準確的後輪和前輪測量以及修整輪子時使用。
這是TB-PF30和TB-PF36的備件。
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The dial indicator is installed on all purpose arms, reads to 0.01 mm and provides you more accuracy on rear and front wheels measurement and when truing the wheel.
Spare part for TB-PF30 and TB-PF36.