Fangrui Product Details Aircraft Aluminum Material: Pvc Reamer Is Made Of The Latest Hard Alloy With High Hardness, Precision, Durability, And A Long Service Life. The Coated Undergoes Treatment To Resist Rusting To Be Waterproof And Long-term The Plumbing Repair. Four-sided Square Insert: Carbide Insert Provides Four Cutting Surfaces, You Can Be Turned 90 Degrees For New Cutting Surfaces Before Use, The Cutting Efficiency Is Higher And Faster, Can Bore Out Broken Pipes With Ease Making An Insanely Smooth Channel. Wide Application: Pvc Fitting Saver Helps Save Time And Money, Great For Vent Lines, Drain Lines, And Water Lines, Which Are Used To Clean Up Internal And External Burrs, Edges, Solvent Cement Residue On Pvc, Cpvc Or Abs Pipe Fittings. Easy To Operate: Just Select The Proper Size Fitting Saver, Put It In The Drill Chuck And Tighten, Insert Fitting Reamer Into Broken Pipe In The Center, Ream Old Pipe Until Proper Depth Is Attained. Note: Check If The Hex Key Shaft Is Locked Or Not Before Use; It Is Recommended To Use A