刀口尺用来测量直线度和平面度误差，要配合塞尺来使用。泊头市达昌机械装备制造有限公司位于渤海之滨”铸造之乡”的泊头市，北依首都北京及传统的工商业名城天津，交通十分便利, 公司主要生产的产品有：铸铁检验平板、划线平板、装配平台、焊接平板、T型槽装配平台、镗铣机工作台、三座标平台、电机试验平台、火工平台、落地镗床工作台、镁铝轻型平尺、铸铁平型平尺、桥型平尺、方尺、直角尺、机床专用角度尺、检验方箱、划线方箱、磁性V型架、偏摆检查仪、齿轮跳动检查仪、机床检验棒、机床调整垫铁、机床防震垫铁、阶梯垫铁、等高垫铁、铸铁Ｖ型铁、钢件v型架、铸铁弯板、铸铁平台、正弦规、轴用卡板或止口卡板、校对光滑专用环规、光滑极限孔用量规、划线平台、划线盘、圆柱角尺等。产品各项技术指标均达到或超过国家鉴定规程要求。
测量时将刀口尺的的刀口垂直在被测平面上，用塞尺来塞刀口下的缝隙，从而测量出平面度误差。Measurement of the knife-edge knife-edge vertical feet of the measured plane, with the plug under the knife-edge ruler to plug the gap, which measure the flatness error. 检验时，如果刀口尺与工件平面透光微弱而均匀，则该工件平面度合格；如果进光强弱不一，则说明该工件平面凹凸不平。Test, if the knife-edge ruler and the workpiece plane and uniform light transmission weak, then the workpiece flatness qualified; if mixed into the light intensity, then the workpiece plane uneven. 可在刀口尺与工件紧靠处用塞尺插入，根据塞尺的厚度即可确定平面度的误差。In knife-edge ruler and the workpiece close to the office with plug-foot insertion, according to the thickness of the plug-foot flatness error can be determined.
刀口尺材质：按客户不同需求分为镁铝合金和钢件两种。Knife-foot Material: according to the different needs of customers are divided into two kinds of magnesium alloy and steel parts. 镁铝合金刀口尺重量轻，使用方便，不易变形，不会生锈，易于保管。Magnesium-alloy blade-foot, light weight, easy to use, easy to deformation, does not rust, easy to keep.
刀口尺用途：主要用于检测平板、平尺、机床工作台、导轨和精密工件的平面度、直线度.Knife-edge ruler Uses: mainly used to detect the flat, flat feet, machine tables, rails and precision workpiece flatness, straightness.达昌量具本着“以质量求发展、以信誉求生存”的经营方式。形成了生产销售维修一条龙的体系，凡是购买我公司产品的客户，如果在半年之内出现质量问题，实行产品“三包”！坚决以为客户服务为中心！
更多产品请查询：http://www.btdclj.cn