硬質(zhì)合金測量表面（測砧）確保高耐磨度(三爪硬質(zhì)合金圓柱不磨） 可接近盲孔底端進(jìn)行測量 為恒值力測量提供棘輪鎖定裝置 通過精密環(huán)規(guī)（選件）進(jìn)行零點(diǎn)調(diào)節(jié)貨號(hào)測量范圍（mm)分度值(mm)允許誤差(mm)271-1516-80.0010.0048-100.0010.00410-120.0010.004271-15411-140.0050.00414-170.0050.00417-200.0050.004271-15720-250.0050.00425-300.0050.00430-350.0050.00435-400.0050.004271-16140-500.0050.00450-600.0050.00460-700.0050.00470-800.0050.00480-900.0050.00490-1000.0050.004