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Nose tube drilling questions
Posted: Mon Feb 09, 2009 2:48 am
by RichieRich
For those of you that have used a truck noseplate on the RC10 chassis, how did you drill new holes in the nose tubes? I have a drill press if that helps any...not very familiar with it though.
Also, I can't seem to find the drill bit that came with my 4-40 tap. What size should I use? 3/32?
Re: Nose tube drilling questions
Posted: Mon Feb 09, 2009 12:47 pm
by cyclepsych0
Looks like the proper drill bit for a 4-40 tap is a #43 size.......
http://www.kramerusa.com/DrillTapChart.htm
Re: Nose tube drilling questions
Posted: Mon Feb 09, 2009 12:52 pm
by aconsola
The nose tubes are soft enough that using a drill that is slightly too small should be ok. Just use the largest bit you have that fits cleanly through something that is already tapped for 4-40.
Starting the drilling is the part I have the hardest time with. I usually use a file or x-acto to create a flat spot where I need to drill, otherwise the bit walks all over the place on the curved surface.
Re: Nose tube drilling questions
Posted: Tue Feb 10, 2009 8:37 am
by Brandon G
just use a center punch, and tap it with a light hammer to leave you a dimple. Drill bit will not walk out on you then.