to prevent cut off material from clogging in a hole saw

[yono]

Hi fellow locksmiths and lock installers,
Here is another technique i have in installing locks using a boring hole saw. My problem before, is that everytime i do the boring of a hole using a hole saw is that the cut off materials always give me a headache in removing it from the hole saw. pushing it with a screw driver helps but give me a real hard time sometimes. i had got the idea, how to just pop it out automatically after the drilling.
HERE IS THE SIMPLE METHOD TO SOLVE THE BLUES.
1. Install a spring a little bit stronger and enough to play loose within the drill bit size and the spring lenght is just about a little shorter than the hole saw depthness. and wellla!! the cut off material when boring a hole just pop out automatically OUT of the hole saw. try it folks.regards

[freakparade3]

Myself and all the other locksmiths I know use a Forstner bit so this is not an issue. They do a much better job and look more professional.

http://www.wisegeek.com/what-is-a-forstner-bit.htm

[linty]

neat, never seen anybody in my area use a forstner bit for installs. Are they really pricey in the larger sizes?

[freakparade3]

They can be pretty expensive, depending on where you get them. Most of the better install jigs come with forstner bits now.

[linty]

is it hard on the drill? I did a bit of reading and found a few sites that said forstner was better suited to drill presses than hand drills.

[maintenanceguy]

We always use forstner bits. The screw tip makes them self feeding so no drill press is used.

The hole edges are much cleaner than you can get with a hole saw.

The drill bit doesn't clog up like the original poster is complaining about.

A good 2-1/8" bit costs around $30.00

[WOT]

We always use forstner bits. The screw tip makes them self feeding so no drill press is used.

The hole edges are much cleaner than you can get with a hole saw.

The drill bit doesn't clog up like the original poster is complaining about.

A good 2-1/8" bit costs around $30.00

Can you drill sheet metal with it? What about metal shell on the door?

[Mutzy]

Wow, those bits look cool. Never seen one in Australia though.

I assume it provides more stress on the drill? As opposed to normal holesaws that only cut around the edge, those have cutting blades on the face of the holesaw, right? That sounds like you're cutting more wood than required.

Looks good though. Available in 51/54mm sizes i guess?

[freakparade3]

I'd say the Forstner bits are definately harder on your drill. I use an 18 volt cordless Hitachi and sometimes it gets stalled out. They cut so much cleaner than a hole saw it's worth it. There is no need to stop halfway through and switch sides because there is no splintering.

[maintenanceguy]

They do not cut metal. Unfortunately, we still have to use the self clogging hole saws for that.

[linty]

can you recommend a brand?

[freakparade3]

Whatever your favorite brand of drill bits is they likely have forstner bits. I know Milwaukee makes them, can't go wrong with that brand.

[vitti]

Wow, those bits look cool. Never seen one in Australia though.

these are VERY common drill bits in woodworking. They are about the only way to drill a flat bottomed hole. Any place that deals in woodworking supplies should carry them. Finding the larger sizes required for this application might be harder at the local retail level but online/mail order suppliers should stock them.