Clean Ream Plus® plastic pipe fitting reamers ((also known as socket savers and/or hub savers) are inserted into a drill (not provided) to clean out the old or broken pipe and leftover solvent cement from a fitting so the fitting can be reused. REED's Clean Ream Plus line offers durable, price competitive tools. Hub savers are used for reaming drain and waste piping, vent intake, as well as plumbing fittings, including PVC unions. REED hub saver reamers feature a red, anodized aluminum guide and black cutting disc. The socket saver disc is heat-treated for long life and is sharpenable and/or replaceable. NOTE: REED Clean Ream Plus hub saver reamers are not recommended for high pressure supply systems or for vent side of gas burning appliance piping systems.