REMS RAS Cu for tubes 3–35 mm, 1/8–1 3/8" REMS RAS Cu for tubes  3–42 mm, 1/8–1 3/4" Sturdy telescopic spindle, long spindle guidance and 4 specially hardened back pressure rollers ensure exact alignment to the tube, easy in-feed, easy cutting and precise, right angle cut. Ergonomic, handy operating knob in metal for easy work and long service life. Cutter wheel protected against touching the back pressure rollers by in-feed limitation. Retractable internal reamer, pivoted, for automatic alignment to the work piece. Specially hardened and specially ground reamer blade, replaceable.