I just published a simple video clip showing the performance comparison between typical impact drill and rotary hammer to youtube, for educational purpose.
http://www.youtube.com/watch?v=RZ6BZI27gSg
BTW, please follow the safety precaution while handling and operating power tools. I was very lucky because no injury occurred during the making of this video clip.
I used Exceed brand 550W impact drill which I bought some years ago. The drill bit is moderately used, but still in good condition. The size of the drill bit is 6mm, which I bought from local hardware store. For rotary hammer, I used 2 SDS+ drill bits, 6mm and 12mm. The concrete block looks small, but is also quite awesome, because, it is quite heavy, at 39.4 kg. From the density calcution, the concrete block density is 1800 kg/m^3
The first cut, I drilled with impact drill, and you can see it took about 1 minute to drill to the depth for inserting typical plastic wall plug (wall anchor). What we cannot feel from the video is the 'pain' caused from the vibration.
The 2nd cut, showing the drilling with rotary hammer with 6mm drill bit, it tooks about 3 seconds. Since it finished quite quickly, I tried with 12mm drill bit, and you can see yourself the result in the 3rd cut.
Finally, here is the behind the scene, when making this video clip.
If Makita HR2810 is my favorite power tool, then the 'Keep' brand ball head tripod is my favorite photography tool.
BTW, I am just an IT guy, and DIY or home fixing is just my hobby. I am not a professional photograher, movie maker or trade man. So, please excuse me for the video clip quality.
Update: 2011-12-02
I just published another youtube clip demonstrating the rotary hammer's power. Yes, it is possible to drill into wood, but, the hole is not as clean as when drilled using proper wood bit. :
Camera: Ricoh GXR P10.
Update : 2011-12-10
Quick review: Boyai BY2.24R. Cheap China mad 24mm rotary hammer.
http://forum.lowyat.net/index.php?act=ST&f...2051914&st=140#
Update: 2012-02-27
Change the title from Impact drill vs Rotary Hammer. (Video) to [Power Tool] Masonry/Concrete Drilling to generalized the methods to drill into concrete or masonry.
Thank you..
Reference:
Correct way to handle power tool
http://www.youtube.com/watch?v=oGphjIuyDg4
Cordless impact drill vs cordless rotary hammer
http://www.youtube.com/watch?v=SKDIggpbXqU
This post has been edited by bahathir: Feb 27 2012, 10:00 AM