研磨器 研磨器用于卡尺，千(qian)分尺的(de)修(xiu)理研磨，選用球默(mo)鑄鐵材料加工，千(qian)分尺研磨有(you)實芯和空(kong)心結(jie)構。

，機械加工(gong)中的機床(chuang)部件(jian)，有固定(ding)和活動兩種。固定(ding)可對端(duan)面復雜的零件(jian)和不允(yun)許打孔的零件(jian)進(jin)行(xing)支承。主要由頂(ding)針、夾緊裝置、殼(ke)體、固定(ding)銷(xiao)、軸承和芯(xin)軸組成。

刮(gua)刀(dao)工(gong)(gong)作原理(li)：刮(gua)刀(dao)有一個把(ba)手和鋒利刀(dao)片(pian),用(yong)來(lai)迅速刮(gua)掉字(zi)跡(ji)的(de)工(gong)(gong)具,鉗工(gong)(gong)用(yong)來(lai)刮(gua)削金屬的(de)工(gong)(gong)具,一般為三(san)棱型,硬度較高.