DynaPrep MDSF 408 Split Frame 3HP Right Angle Pneumatic Kit DynaPrep MDSF Split Frame 408 4in-8in OD (DN100 - 200) 3hp Right Angle Pneumatic Kit, rotating split ring style OD mounted machine tool, often referred to as clamshells, designed to cut, bevel, single point and counterbore pipe. Kit is complete with MDSF 408 rotating ring set, 1 extended parting tool slide, 1 extended beveling tool slide, no-time starwheel feed, Right Angle Pneumatic drive, operating hand tools, manual and storage case. Wachs DynaPrep MDSF modular design split frames are named for their ability to split in half for mounting to the outside of inline pipe. It maintains the low clearance design of our existing LCSF series, but builds on that legacy with dozens of innovations and new features to make it more powerful, more versatile and faster to setup and operate. It redefines the standard in portable, cold cutting machine tools.