How should the tool rest on a grinder be positioned to prevent stock from getting caught?

How should the tool rest on a grinder be positioned to prevent stock from getting caught?

• A. Within 1/2 inch of the wheel surface
• B. Within 1/4 inch of the wheel surface
• C. Within 1/8 inch of the wheel surface
• D. Directly contacting the wheel surface

Answer: (C)

The tool rest on a grinder should be positioned within 1/8 inch of the wheel surface to prevent stock from getting caught. This precise distance allows for effective support of the workpiece while minimizing the risk of it becoming trapped between the wheel and the tool rest, which could cause a dangerous situation or damage to the material being worked on. Having the tool rest too far away, such as at a distance greater than 1/8 inch, could lead to instability during grinding, making it difficult to control the workpiece. Conversely, having the tool rest directly contacting the wheel surface is unsafe, as it could lead to the wheel binding, causing possible breakage or injury. The optimal distance of 1/8 inch strikes a balance between support and safety, enabling efficient grinding without increasing the risk of accidents or material mishaps.

The tool rest on a grinder should be positioned within 1/8 inch of the wheel surface to prevent stock from getting caught. This precise distance allows for effective support of the workpiece while minimizing the risk of it becoming trapped between the wheel and the tool rest, which could cause a dangerous situation or damage to the material being worked on.

Having the tool rest too far away, such as at a distance greater than 1/8 inch, could lead to instability during grinding, making it difficult to control the workpiece. Conversely, having the tool rest directly contacting the wheel surface is unsafe, as it could lead to the wheel binding, causing possible breakage or injury. The optimal distance of 1/8 inch strikes a balance between support and safety, enabling efficient grinding without increasing the risk of accidents or material mishaps.