The chain is fine...but I ordered the wrong size. Nine links of the chain I ordered equals six of the size I wanted. My error...
How can I straighten out the springs? I can't use them coil uo as is.
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Swap props with precision using this CNC-machined M5 propeller nut wrench, purpose‑built for 2205 and 2207 brushless motors found on 5-inch FPV racing and freestyle drones. Each tool is turned from solid 6061‑T6 aluminum bar stock in a single machining cycle, resulting in a hex socket with minimal internal clearance—so it grips the nut snugly without the slop that strips aluminum hardware. The compact body measures just 63 mm long and 32.2 mm wide, fitting easily in a pocket or pit bag. A hard black anodized finish (also available in silver) adds surface hardness that resists scratches and corrosion from sweaty hands, salt air, and repeated use. The 13 mm thickness gives your fingers a solid purchase, letting you spin stubborn M5 nuts on and off with confidence. Keep one in your field kit and one on the bench—when every second counts between heats, the right tool makes the difference.
| Material | 6061‑T6 Aluminum (CNC machined) |
| Socket Size | M5 (fits 2205 & 2207 motor prop nuts) |
| Dimensions | 63 × 32.2 × 13 mm |
| Surface Treatment | Black oxide anodized (also available in silver) |
| Manufacturing Process | CNC turn-mill, single setup |
| Application | Propeller nut removal & installation, pit maintenance |
| Compatible Motors | 2205, 2207, and similar M5 prop shaft motors |
| Package Includes | 1 × CNC M5 prop wrench (select color) |
A: Yes. Standard 2205 and 2207 brushless motors use an M5 thread on the prop shaft. This wrench is machined specifically for that size, giving a precise, slop‑free fit.
A: CNC turning from a solid aluminum bar produces a perfectly concentric hex socket with minimal internal clearance. This means the wrench grips the nut evenly across all six faces, reducing the chance of stripping soft aluminum prop nuts—a common frustration with looser, stamped tools.
A: The black oxide anodizing creates a hardened surface layer that resists scratches and corrosion much better than bare aluminum. It won't flake off like paint and keeps the tool looking sharp even after a full season of pit use.
A: It's sized for M5 nuts, so if your RC boat motor uses an M5 prop shaft, it will fit. Many small brushless RC boats share similar hardware, but check your specific motor specs to confirm the thread size before ordering.