MITUTOYO Micrometer 250-400 511-806

2-Point Inside Measuring InstrumentSeries 511This is a micrometer head that enables measurements without interchangeable anvils.<br />It offers you the following benefits:<ul><li>A long plunger stroke gives you amazing accuracy.</li><li>Contact points are carbide (&gt;18 mm range), giving you high durability and wear resistance.</li><li>A large grip reduces heat transfer from the operator by 50%.</li><li>Wide measuring range with sub-anvils.</li></ul>