|Forum topic by Sanderguy777||posted 04-17-2015 08:31 AM||831 views||0 times favorited||3 replies|
04-17-2015 08:31 AM
I recently drilled some holes in a piece of 3/4” plywood. It is the work surface of my workbench and I needed some dog holes in it. I was using my DeWalt DC759 drill ( 0-450 or 0-1500 R.P.M.) and it started to get hot or at least warmer than I think it should. I had been putting my hand over the air vents in the rear of the drill so I quit doing that, but it was still warm. I was using a spade bit to drill about 20 or 30 holes, so I decided that instead of killing my good drill I should burn up a cheap one. One of the many left-overs of the last owners of this house is a HF drill (0-3000 R.P.M.). I had actually considered one of these when I found out that we where going it move here, but I never got one because someone gave us this DeWalt drill and an impact driver that I love.
Anyway, I got the HF drill out and put the bit in and pulled the trigger. WOW! I can’t believe the power that drill has. I was spending about 30-45 seconds a hole with the DeWalt and I spent about 15-20 seconds a hole with the HF!
I am sold on the speed, but I was just wondering why the HF did so well. I can hold the drill chuck and stop it from moving so there is no torque, just speed. Was it working that well because of the speed or what? I was using the same bit, the only difference is maybe I was pushing the HF a little harder. Even that shouldn’t change the time that much though.
I was just wondering about your guys’ thoughts on the performance of these two drills.
The other question I have is: What is the best speed for boring holes? I heard somewhere that 1 (high torque, low speed) is best for drilling and screwing. But I have tried it and it seems to work better on 2 (high speed, low torque) except when I am drilling metal. What is really the best setting?