WarnerConstCo. said:
In the catalog, the C-15 is 1.6 Kg. The T-15 is listed as 1.62 Kg.
You have a very naughty catalogue. All websites list the T15 as 1,5 Kg.
hockey_magnet said:
Here's my take on why the C ergonomics are better:
If I gave you a relatively thin stick with a heavy weight on each end and asked you to precisely place one of the weights on an exact spot, you would be able to do that better if you held the weight in your hand instead of holding the middle of the stick.
I'm sorry, but your theory defies logic. A simple calculation using physics laws could prove this. The task you mention would be far simpler by holding the stick in the middle. You don't even say which of the two weights you hold in your hand and which one you place on the wall. Of course, with the C15 you hold the back of the drill in your hand and put the front of it on the wall. This makes the distance between both weights the maximum distance and this situation would require the most force exerted to the back to move the front.
But this counts only when we're talking about balance. Balance is not the only deciding factor in this case. A second factor to consider is force needed when driving/drilling. When balance is at stake, the T15 clearly wins, but when the pushing force during driving/drilling is considered, the C15 is more optimal, because your hand is better aligned with the direction of the force.
hockey_magnet said:
With a very heavy drill, which the C15 is not, I think the T would indeed be less fatiguing over a period of time.
Of course this is the point where it doesn't really matter anymore. Listen, we can talk theoretical physics all day, but in the end the difference in used force is so small
it makes no difference. So personally, I think it is big BS to talk about which ergonomics is really better or not from an absolute view, it just depends on personal preference. I think everybody could work just as well with either model.