* Too Aggressive: Bench grinders are designed for removing a significant amount of material quickly. Clipper blades are precision instruments that require very fine, controlled sharpening. A bench grinder is far too aggressive and can easily overheat the blades, ruin the temper of the steel, and remove too much material, leading to irreparable damage.
* Difficult to Control Angle: Maintaining the correct and consistent angle on a small clipper blade using a bench grinder is extremely difficult. Inconsistent angles will result in poor cutting performance and can damage the blades and combs.
* Overheating: The speed of a bench grinder generates a lot of friction and heat. Overheating the blades can change the steel's properties, making them brittle and unable to hold an edge.
* Safety: Holding small, delicate blades safely and securely while grinding on a fast-spinning wheel can be dangerous, especially for inexperienced users.
Alternatives for Sharpening Clipper Blades:
* Specialized Clipper Blade Sharpening Machines: These machines are designed specifically for sharpening clipper blades with precise angles, controlled speeds, and cooling features. They are the best option for professional groomers and barbers.
* Honing Stones/Sharpening Stones: Using a fine-grit honing stone or sharpening stone is a safer and more controlled method for DIY sharpening. It requires more time and patience but allows for better precision.
* Professional Sharpening Services: The easiest and often most cost-effective option is to send your blades to a professional sharpening service. They have the equipment and expertise to restore your blades to optimal cutting performance.
In Conclusion:
While a bench grinder *could* theoretically be used by someone with *extreme* skill and experience, the risks of damage and injury are very high. It's generally not a suitable method for sharpening hair clipper blades for the average user. Stick to the safer and more precise alternatives like specialized sharpening machines, honing stones, or professional sharpening services.