Replies

1. 
   rez | May 30, 2009 10:46pm | #1

   Hadn't ever seen one of those but that was a good idear someone had.

   And now he could feel it- that inevitable craving for cookies! It happened every time he left his firewall down.          -Heck '02

1. 
   BillHartmann | May 30, 2009 11:00pm | #2

   Starrethttp://www.mcfeelys.com/product/HS-0019/Starrett-quotOOPSquot-Arbor.
   William the Geezer, the sequel to Billy the Kid - Shoe

2. 
   splintergroupie | May 30, 2009 11:01pm | #3

   When that happens, wedge the plug back in the hole with slivers and use the 1/4" drill bit center to center the larger hole saw. There's no friction on the center hole, so the plug stays put until you have the new hole started.

1. 
   [email protected] | May 30, 2009 11:48pm | #5

   Most of the time I'm there years after the original hole was drilled.

1. 
   Shep | May 31, 2009 01:14am | #6

   Drill a hole in a scrap of 2x for a template, clamp the 2x to whatever you're working on, in the location you need, and drill away.

   Once the holesaw has started cutting into your material, its pretty much self-guiding. The only problem is splitting out the back side of what you're drilling, but that can be taken care of simply by clamping a scrap of something to the back.

3. 
   Chucky | May 30, 2009 11:25pm | #4

   http://www.leevalley.com/wood/page.aspx?c=2&p=52518&cat=1,180,42316

    

    

4. 
   brownbagg | May 31, 2009 01:31am | #7

   I have one I bought from HD
1. 
   hmj | May 31, 2009 02:59am | #8

   I really needed one several times, but since I bought one I haven't needed it at all. Go figger...

5. 
   fingers | Jun 02, 2009 02:55am | #9

   I've never owned one but the threads on my normal arbor are long enough that I have used that technique, two hole saws on one arbor to guide the larger hole saw by the smaller hole saw riding in the too-small hole. Does that make sense? I've only had to do it a few times but have never had an issue getting the saws stuck on the arbor or locked together.

1. 
   Dreamcatcher | Jun 02, 2009 03:08pm | #10

   Ditto on just using the regular hole saw arbor. I used that trick once or twice many years before I ever heard of an "oops" arbor, and still don't understand the need. How often do you really need to make a larger hole... probably 4 times in my whole career so far.

6. 
   migraine | Jun 02, 2009 09:21pm | #11

   blue mole has a mandrel that the threads are long enough.  I think a few of the others do too..  I have soo many hole saws  mandrals i can't remembr which is which.  they are all interchangable