This versatile wrench is a great addition to any industrial and scientific toolkit. After I put it to the test, i was impressed with its ability to grip even the toughest bolts WITHOUT slipping or rounding off the edges .The comfortable handle makes it easy to grip and the durable construction ensures it will last for years. The only downside I've noticed is that it's a bit on the heavy side but that's a small price to pay for such an efficient and durable tool..