A few months ago, we broke out a few of our D-Handle Hammer Drills and put them to a test. The lineup included the Makita HR2455, Hitachi DH24PF3, Bosch 11224VSR, Bosch 11255VSR and the Dewalt D25203K. The test was pretty simple. We grabbed some 3/8” SDS bits and went to this big boulder we have in our back lot. I am not too sure what kind of rock it was, but it was pretty hard stuff. We drove the bits in four inches and timed the results.
We had one guy doing the drilling and one guy on the stop watch to try to keep it as consistent as possible. Each drill got its own fresh bit to start with, and we did five holes each to get an average time.
The Results (with current prices):
Hitachi’s DH24PF3 average time of 17.04 seconds ($185)
Makita’s HR2455 average time of 19.86 seconds ($200)
Bosch 11255VSR average time of 22.08 seconds ($280)
Dewalt D25203K average time of 22.98 seconds ($200)
Bosch 11244VSR average time of 23.74 seconds
Granted its not the most ‘scientific‘ way of doing things, but it does give you an idea how these guys perform. I did think its worth mentioning that while the Hitachi was the fastest, it also had the most vibration of the group.
Article submitted by Chris of KMS Tools.