The MILWAUKEE 5 Piece SHOCKWAVE Conduit Reaming Bit Holder Set is engineered to deliver the most reams and be the longest reaching accessory reamer in the industry. Its dual purpose design allows users to ream the inside and outside of the pipe, burr-free, and fasten with a single accessory. The Milwaukee conduit reamer is made for use with 1/2", 3/4" and 1" EMT. The EMT conduit reamer features a thick, hardened tool steel blade that provides up to 5X blade life vs. the competition. The slim profile allows access for common electrical fastening applications with precise fit custom machined tips to prevent stripping and reduce wobble. Each tip type has customized geometry and Shockzones optimized in both length and width for best performance across tip types. Laser hardening at the tip creates an outer protective shield for improved wear resistance. The SHOCKWAVE Conduit Reamer Replacement Blades for the Reaming Bit Holder offer extended tool life.