Which type of grinder is best used for sharpening worn edges on cutting tools?

A bench grinder is best suited for sharpening worn edges on cutting tools due to its design and functionality. Bench grinders typically consist of two grinding wheels mounted on a stationary frame, providing stability and ease of use. This allows for precise sharpening and shaping of cutting tools, such as chisels, lathe tools, and other edges that require a fine finish.

The adjustable tool rests on a bench grinder facilitate proper alignment and angle adjustment, ensuring that users can effectively sharpen the tools to the desired edge without much difficulty. Additionally, bench grinders can handle a variety of sharpening tasks catering to different types of tools, providing a versatile solution for maintenance work in workshops.

In contrast, other types of grinders, while useful for different applications, do not offer the same level of precision and suitability for sharpening cutting tools. For example, a belt grinder operates with a belt of abrasive material, which is more effective for shaping and smoothing larger surfaces rather than fine precision sharpening. An angle grinder is primarily used for cutting and grinding metal or other materials but lacks the necessary control and stability for delicate sharpening tasks. A hand grinder is generally a more portable option, but it does not provide the stability required for sharpening tools accurately.