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Drilling end pins
http://w-ww.luthiersforum.com/forum/viewtopic.php?f=10102&t=3538
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Author:  Andy Zimmerman [ Sat Oct 15, 2005 5:58 am ]
Post subject: 

If you have a guitar that you are going to drill a 1/2" hole for a endpin jack
and there is no hole already. Do you?
A) Drill a 1/2" hole with a brad point
or
B) Drill a small pilot hole and then use a step drill to enlarge the hole

Thanks
Andy

Author:  RussellR [ Sat Oct 15, 2005 6:10 am ]
Post subject: 

Andy

I would use the step drill. Also tape the end graft over with masking tape to avoid chipping.

For mine I use a pilot hole and a reamer.

Author:  Brock Poling [ Sat Oct 15, 2005 8:24 am ]
Post subject: 


Drill a hole and use a hand reamer to get it to the final size.


Author:  Don Williams [ Sat Oct 15, 2005 8:41 am ]
Post subject: 

What Brock said.

Author:  Dave Rector [ Sat Oct 15, 2005 9:51 am ]
Post subject: 

What Don said.

Author:  Andy Zimmerman [ Sat Oct 15, 2005 11:09 am ]
Post subject: 

Where do you get a good hand reamer that gets to 1/2"
Thanks
Andy

Author:  Brock Poling [ Sat Oct 15, 2005 11:28 am ]
Post subject: 


Grizzly has them among other places.

Author:  HankMauel [ Sat Oct 15, 2005 12:20 pm ]
Post subject: 

Get a piloted reamer...and check the diameters; you may find that most end jacks are really 15/32" diameter. See the discussion on drilling tuner holes eslewhere in the Forum.
Replace the "pilot" with the equivalent drill diameter, tape off the area as mentioned, find the center point and punch a small starting dimple with an awl, then drill and ream in one action. Do go slow with any drill on a finished instrument, no matter what method you choose.

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