Models 151-156 feature a quick adjustment, a double-T beam construction, hardened wear surfaces, and sliding pieces with pressure bearings for smooth operation. X-CEL knob – with larger and more ergonomic designs, pipes can be cut faster and with less effort. X-CEL cutting wheel pin – with our new locking ball design, the cutting wheel can be replaced even faster without the use of tools or the risk of losing retaining rings. Models for plastic or metal pipes are available. Models 151 and 152 come with a foldable cutter blade. Model 151-ML is suitable for cutting composite pipes.