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CAD - Engineering - Technical > Thread tapping advice.

gadzooks
Heliman
Location: great briton,london

Can anyone here help.
I have a alluminium lever which as a 1.6mm thread hole.
I now need this to be 2mm threaded hole.
is this 1.6mm hole small enough to be drilled out and tapped to 2mm.
If so what size drill will i need.

07-30-2007 09:37 AM

Peefor
Veteran
Location: St Albans UK

I would not bother drilling the hole. Just carefully retap the hole with your 2mm tap. If you have a taper tap, so much the better.

Pete

07-30-2007 10:01 AM

jester4
Veteran
Location: Brampton, Ontario

The drill size for a 2mm hole is 1.60mm or a #52 drill ( .0635" ) . No harm in running a 1/16" drill in there and tap after.

07-30-2007 01:33 PM

JuanRodriguez
Elite Veteran
Location: Rochester, New York

I agree with peefor....

Although there would be no harm, drilling first is not necessary....

07-30-2007 02:08 PM

gadzooks
Heliman
Location: great briton,london

Thanks guys.

07-30-2007 06:43 PM

concho
Senior Heliman
Location: montreal quebec canada

ttt

01-09-2008 07:04 PM

concho
Senior Heliman
Location: montreal quebec canada

ttt

01-09-2008 07:04 PM

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CAD - Engineering - Technical > Thread tapping advice.

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