Reaming cut conduit ends is a quick step that protects wire insulation from sharp burrs left by hacksaws and tubing cutters. The NEC requires it and the tools are inexpensive relative to the cost of a damaged wire pull. The five picks below cover the most widely used conduit reamers for EMT, rigid, and PVC conduit from 1/2-inch to 2-inch trade sizes.
| Product | Type | Conduit Sizes | Rating |
|---|---|---|---|
| Klein Tools 85091 | Tapered screwdriver reamer | 1/2 to 2 inch | 4.8/5 |
| Ideal Industries 35-812 | Bi-directional reamer | 1/2 to 1-1/4 inch | 4.7/5 |
| Greenlee 21-inch Reamer | Tapered speed reamer | 1/2 to 2 inch | 4.6/5 |
| Klein Tools 88901 | Steel tapered reamer | 1/2 to 1 inch | 4.5/5 |
| Irwin Tools Conduit Reamer | Drill bit reamer | 1/2 to 1-1/4 inch | 4.4/5 |
Klein Tools 85091 — Best Overall Conduit Reamer
The Klein Tools 85091 is a screwdriver-style tapered reamer that handles 1/2-inch through 2-inch conduit from a single tool. The tapered steel blade removes burrs quickly with a few rotations and the dual-direction blade cuts in both clockwise and counterclockwise directions. The handle is the same form factor as a standard screwdriver, fitting naturally in the tool pouch or clipping to a belt. Klein’s quality control on this tool is consistent and the hardened steel blade maintains its edge over extensive use. This is the most commonly recommended conduit reamer by professional electricians for its combination of range, speed, and durability.
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Ideal Industries 35-812 — Best Bi-Directional Speed Reamer
The Ideal Industries 35-812 uses a bi-directional reaming design that removes burrs on both the inside and outside of the cut end simultaneously, which is more thorough than inside-only reamers. It handles 1/2-inch through 1-1/4-inch conduit, covering the most common residential and commercial trade sizes. The tool is compact and fits a standard tool pouch. Ideal’s quality on this tool is professional-grade and the bi-directional capability distinguishes it from single-direction competitors. For electricians who want comprehensive deburring on every cut end, the 35-812 is a logical choice alongside a reamer that covers 1-1/2 and 2-inch sizes.
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Greenlee Speed Reamer — Best for High-Volume Conduit Work
The Greenlee tapered speed reamer is designed for high-volume conduit work where fast deburring of many cut ends per day is the goal. The large tapered blade removes burrs quickly on 1/2-inch through 2-inch conduit and the ergonomic handle reduces hand fatigue over extended use. Greenlee tools are standard in commercial electrical contracting and the speed reamer reflects the company’s focus on productivity. For electricians running many conduit sections per day in commercial rough-in, the larger handle and faster action of the Greenlee reamer is a meaningful time saver compared to smaller pocket reamers.
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Klein Tools 88901 — Best Compact Belt-Loop Reamer
The Klein Tools 88901 is a smaller tapered reamer with a built-in belt clip that keeps it immediately accessible without digging through a tool bag. It handles 1/2-inch through 1-inch conduit, covering most residential trade sizes. The compact size means it can be clipped directly to a belt or tool apron for one-handed access during conduit work. Klein’s steel quality is consistent on this model. For electricians working on residential projects where 1/2 and 3/4-inch conduit predominates, the 88901 provides convenient hands-free carry and adequate coverage without the bulk of a full-range reamer.
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Irwin Tools Conduit Reamer — Best for Drill-Driven Deburring
The Irwin conduit reamer is a drill-bit-shank tool that fits in any standard power drill or impact driver, allowing rapid power-driven deburring on high-volume conduit work. For large commercial jobs where hundreds of conduit sections are cut and reamed, the drill-driven approach significantly reduces the time and hand fatigue of manual reaming. It handles 1/2-inch through 1-1/4-inch conduit sizes. The trade-off is that a drill must be on hand, which is always the case on commercial job sites but may be less convenient for residential service calls. For contractors running conduit in volume, this tool is worth adding to the drill accessory kit.
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How to Choose a Conduit Reamer
Identify the conduit sizes you work with most frequently and confirm the reamer covers that range. For general residential and light commercial work, a reamer covering 1/2 to 1-inch is sufficient for most daily use. For commercial work, coverage to 1-1/2 and 2-inch is necessary. Consider the carry method: belt-clip reamers stay accessible during active conduit runs. For high-volume commercial work, a drill-driven reamer or large handle speed reamer reduces time per cut end. Klein Tools and Ideal Industries are the most proven brands for daily professional use.
For related coverage, see best conduit bender and best conduit level. Review our evaluation criteria at /methodology.
Frequently asked questions
Why do I need to ream conduit after cutting?+
Cutting conduit with a hacksaw, tubing cutter, or reciprocating saw leaves a sharp burr on the inside of the cut end. During wire pulling, that burr can scrape and cut through wire insulation, creating a potential arc fault or short circuit inside the conduit. NEC 300.17 requires conduit ends be reamed or otherwise smoothed after cutting. Reaming takes a few seconds per end and prevents expensive callback repairs caused by damaged wire insulation.
Can I use a screwdriver or file instead of a conduit reamer?+
A round file or a screwdriver shank can remove some burrs in a pinch, but neither is as fast or effective as a purpose-built conduit reamer. A tapered conduit reamer removes the burr in one or two rotations and leaves a smooth chamfer. The time savings over a full day of conduit work is meaningful and the tool is inexpensive. Most professional electricians keep a dedicated reamer in their pouch or on their tool belt for this reason.