日本三豐MITUTOYO比較式百分表/千分表編號......................測量范圍/分辨率.................備....注1900F.........................0-0.1X0.001mm.................標準型1900F-60...................0-0.1X0.001mm.................防水型1900F-62...................0-0.1X0.001mm.................防塵型1929F.........................0-1X0.01mm......................標準型1929F-60...................0-1X0.01mm......................防水型1929F-62...................0-1X0.01mm......................防塵型一、特點：1）心軸由硬質合金制成。2）齒輪固定緊密，可精度。3）比較測量。