Small Motor Guard

This is a small guard for a motors lab. We use AC motors with 1-3 hp output. It fits most of the motors as they follow a standard sizing. The motor guard file is the original one. I found it to be too weak and thought students would break it defeating the purpose. The 27 mm hole file works to add a plug so that devices such as a tachometer can read the shaft but then it can be closed to avoid people getting injured.