End Prep Bevelers Wachs EP 424 with the Speed Prep auto feed system is a precision I.D. mount end prep machine tool designed to bevel, compound bevel, J prep, face and counterbore pipe, fittings and valves. Utilizing a revolutionary mechanism that feeds simultaneously in the axial and radial planes, the Speed Prep EP 424 is simple to use, even for an inexperienced operator. It is powerful enough to form tool from 4in to 16in (DN100-400) through Schedule 160, and will single point from 4in-24in (DN100-600) up to a 6.5in (165mm) wall thickness. Wachs SDB line of small diameter bevelers have been engineered for fast, precise onsite facing, beveling, compound beveling and counterboring of light and heavy wall pipe, tube or casing. Proven workhorses, they set up quickly with a self centering mandrel and chuck assembly mounting to the pipe I.D. Three models are available to prep from .875in-12.75in (22.2mm-323.9mm) O.D.