三爪內徑千分尺 特點：硬質合金測量表面（測砧）確保高耐磨度,三爪硬質合金圓柱不易磨損可接近盲孔底端進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）進行零點調節(jié) 技術參數：貨號測量范圍（mm）分度值（mm）允許誤差（mm）L（mm）b（mm）c（mm）271-1516-80.0010.004302.51.5 8-100.0010.004302.51.5 10-120.0010.004302.51.5271-15411-140.0050.004486.30.4 14-170.0050.004486.30.4 17-200.0050.004486.30.4271-15720-250.0050.004509.20.4 25-300.0050.004509.20.4 30-350.0050.004509.20.4 35-400.0050.004509.20.4271-16140-500.0050.0055516.50.5 50-600.0050.0055516.50.5 60-700.0050.0055516.50.5 70-800.0050.0055516.50.5 80-900.0050.0055516.50.5 90-1000.0050.0055516.50.5