368系列 三點內徑千分尺(硬質合金測砧)組合套裝貨號單體測量范圍環規延長桿368-906 2-2.5,2.5-3mm 2.5mm 368-907 3-4,4-5,5-6mm 4mm, 5mm 368-901-106-8,8-10,10-12mm 8mm, 10mm帶有延長桿368-912 12-16,16-20mm 16mm 帶有延長桿368-913 20-25,25-30,30-40,40-50mm 25mm, 40mm 帶有延長桿368-914 50-63,62-75,75-88,87-100mm 62mm, 87mm 帶有延長桿368-915100-125,125-150,150-175,175-200mm 125mm, 175mm帶有延長桿