Usually machines, mechanisms and assemblies during installation is fixed to the mounting surface or Foundation of several bolts. The centers of the bolt holes, usually marked with templates, taken from the base mounted units. Work sin a long, time-consuming, requiring the involvement of specialists of high qualification. However, to avoid markup errors that reduce the reliability of fastening is not always possible.
I propose a device which eliminates templates and allows you to mark (kernite) centers directly through the mounting holes of the unit. It is made in the form of a shell with a swivel head, a centering bushing and coaxially with it with a punch. The device is manufactured a set of replacement transition sleeves, put on the spacer used in the installation holes of different diameters.