Drilling Dewalt gear for Fisher Price

14-02-2006, 22:55

Kevin Sevcik Kevin Sevcik is offline

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Re: Drilling Dewalt gear for Fisher Price

Quote:

Originally Posted by sanddrag

How do we drill (then ream) the dewalt gear to press on the fisher price shaft? We went in with a ~.120 drill and it made lots of noise. It seemed like it was working, but maybe half way through it broke. The gear seems like a very hard material. Any ideas?

Very hard indeed. I chucked the pinion in a lathe and went throught at around 1200 RPM with a brand new bit a little under .125. Then you want to use atleast a .1250 reamer, if not slightly larger. You'll never get the gear on without bending the shaft if you use anything smaller than a .1250, though.

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