door knob mounting hole

Posted by charles cashion on May 29, 2009, 9:23 am

All of the door knobs in house are brand Dexter. The knobs are
approaching 25 years old. They are all mounted in 1 7/8" holes.

Q1: Are there other door knob manufacturers that make 1 7/8" hardware?
If the answer is NO, then I must enlarge my present holes
to 2 1/8".

Q2: How can I hold a hole saw steady and centered while it is
enlarging a 1 7/8" hole to 2 1/8" ?
Thank you,
Charles

Posted by Limp Arbor on May 29, 2009, 9:32 am

> All of the door knobs in house are brand Dexter. The knobs are
> approaching 25 years old. They are all mounted in 1 7/8" holes.
> Q1: Are there other door knob manufacturers that make 1 7/8" hardware?
> If the answer is NO, then I must enlarge my present holes
> to 2 1/8".
> Q2: How can I hold a hole saw steady and centered while it is
> enlarging a 1 7/8" hole to 2 1/8" ?
> Thank you,
> Charles

You can do it this way or buy a jig at your hardware store
http://www.thisoldhouse.com/toh/skill-builder/0,,193167,00.html

Posted by charles cashion on May 29, 2009, 9:53 am

Limp Arbor wrote:

>> All of the door knobs in house are brand Dexter. The knobs are
>> approaching 25 years old. They are all mounted in 1 7/8" holes.
>> Q1: Are there other door knob manufacturers that make 1 7/8" hardware?
>> If the answer is NO, then I must enlarge my present holes
>> to 2 1/8".
>> Q2: How can I hold a hole saw steady and centered while it is
>> enlarging a 1 7/8" hole to 2 1/8" ?
>> Thank you,
>> Charles

>
> You can do it this way or buy a jig at your hardware store
> http://www.thisoldhouse.com/toh/skill-builder/0,,193167,00.html

LA,
Thank you. That looks promising.
Charles

Posted by Doug Brown on May 30, 2009, 11:47 pm

> Limp Arbor wrote:

>>> All of the door knobs in house are brand Dexter. The knobs are
>>> approaching 25 years old. They are all mounted in 1 7/8" holes.
>>> Q1: Are there other door knob manufacturers that make 1 7/8" hardware?
>>> If the answer is NO, then I must enlarge my present holes
>>> to 2 1/8".
>>> Q2: How can I hold a hole saw steady and centered while it is
>>> enlarging a 1 7/8" hole to 2 1/8" ?
>>> Thank you,
>>> Charles

or consider something line this;
http://www.leevalley.com/wood/page.aspx?c=2&p=52518&cat=1,180,42316

Posted by David Nebenzahl on May 30, 2009, 3:18 pm

On 5/29/2009 6:32 AM Limp Arbor spake thus:

>> All of the door knobs in house are brand Dexter. The knobs are
>> approaching 25 years old. They are all mounted in 1 7/8" holes.
>> Q2: How can I hold a hole saw steady and centered while it is
>> enlarging a 1 7/8" hole to 2 1/8" ?

>
> You can do it this way or buy a jig at your hardware store
> http://www.thisoldhouse.com/toh/skill-builder/0,,193167,00.html

'Zactly right. Jig, schmig: all you need is a piece of ply, Masonite,
etc. I've done this and it works.

(It helps to have an alignment attachment on your drill to align 90° to
the work. I got a cheap one years ago that I still use all the time.
Available everywhere.)

--
Found--the gene that causes belief in genetic determinism

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