Sure wish you would have put a picture of the drill up to look at.
Hand drilling iron is not easy any way you look at it. You don't start with a big bit, you drill a small hole and then keep drilling a bigger one, hand drill is not a drill press you know. Sounds to me like your 1/4 inch bit was real dull.
In a Hand drill you also need to be careful or you will bend the 1/2 inch Shank on the silver and deming bits.
Rough figuring that a 1/4 inch hole is 1/4 or a square inch, 100 lbs of pressure (you leaning on the drill) will exert over 400 lbs per square inch on the drill, and that is not taking into account you are only putting pressure on the two thin cutting edges.
Moral of the story don't expect a portable drill to perform like a drill press.
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Irnsrgn
Knowledge must be shared or it lies dead in the mind.
The Blacksmith must use Hammer and Flame to force the iron down the path of his own choosing.
I usually find it much easier to be wrong once in while than to try to be perfect.
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