This hammer tacker is a must-have for all industrial and scientific applications. Based on our own experience the DENZEL HEAVY hammer tacker offered us seamless stapling functionality for our packaging needs. the tool's ergonomic design also made it easy to use for extended periods of time. The only drawback we encountered was that it is slightly heavier than other models .But the pros of efficiency and durability heavily outweigh this one con. Overall, we highly recommend the tacker for all industrial and scientific purposes..