To enable to freely interchange a front end shape of a work in accordance with an object of, for example, removing a dust or the like, in addition thereto, even in a case of contaminating a work, to be able to easily deal therewith, and to be able to recognize a defect even when, for example, operated by an operator of a beginner without being governed by a technique of the operator, a tweezers constituted by two arms having probes arranged opposedly to a sample integrated to a scanning probe mi...