As a result of using this product I found that it made adjusting my grinders an absolute breeze. The adjustable grinder spanner is the perfect tool for any workshop and will make changing the settings on multiple grinders a lot easier .The spanner is made of durable materials and has a comfortable grip that makes it easy to use. The only con is that it may not work with all brands of grinders. Overall, an essential tool for anyone in the Industrial and Scientific field..