Name that tool

[Zem18]

I brought home a small goodie bag from a yard sale and it had some drill bits and router bits inside. Can never have too many of either. It also had these 2 "thingies" or "doohickeys" and I am clueless as to what they are or used for. Trying to search on the ol interweb but again don't know what I'm searching for or what it's called. It's driving me crazy not knowing so.....

Let's hear it

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[Culvercreek hunt club]

it's a drill and countersink for wood screws

[SmokeinTN]

Yep what Culver said. I have several.

[Zem18]

I knew it but I didn't. Thanks for the responses.

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[growalot]

What?...isn't that "shaft" designed JUST like a wooden handle receptor?it's an open tube isn't it?

[growalot]

Hmmmm with out response...two different sized dibblers....

[reeltime]

yup countersink bits.   

grow,  the shaft is probably solid and either round shank or octagon shank to fit in the drill or brace chuck.

they are old school as today's pilot and countersink or countersink bits give a much smoother and cleaner cut.

 

[growalot]

Only Zem could say if they are actually solid. I blew the picture up an they look hollow, that's why I said dibblers. Perhaps he'll clear up what the shaft looks like

[Zem18]

Grow called it correctly, they are hollow.

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[SmokeinTN]

Found this countersink drill bits. 

[Doc]

They work well and are an ingenious bit of engineering. Cheap (sheet metal) and effective. Of course today they have been replaced with all kinds of expensive machined parts that do exactly the same thing.

[philoshop]

Also known as step drills. Pilot hole, screw shank clearance hole, and countersink all in one. The shank is hollow because it's just rolled sheet metal, as Doc pointed out.

[growalot]

Smoken, thanks for the visual..Seeing actual size puts it right in perspective for me. Doc your explanation taught me something new,I have never seen a drill bit that had a  hollow shaft. There are so many different shape and sizes on counter sinks...That I've never seen. 

[Daveboone]

it looks like the hollow portion is off set.....if so, wouldn't drill for diddly.

I was thinking a tree sap tap if it is offset....

[growalot]

That was the other thing that made me think not bits,but obviously they are.

[Culvercreek hunt club]

1 hour ago, Daveboone said:

it looks like the hollow portion is off set.....if so, wouldn't drill for diddly.

I was thinking a tree sap tap if it is offset....

If you save and blow up the picture you can see what the manufacturer did. It is dimpled from setting the "tube" back from the original bend to get it centered. 

[Culvercreek hunt club]

Lots of pictures on the web of them.  Look under "wood screw drills" instead of countersink. 

[philoshop]

They're pretty 'rough' for anything like fine furniture but I've been using them for years where appropriate, like installing kitchen cabinets. They're a lot handier than having three different drills, or spending/wasting time changing bits three different times for every hole. One drill for the holes, and one drill/driver for the screws.

[Culvercreek hunt club]

27 minutes ago, philoshop said:

They're pretty 'rough' for anything like fine furniture but I've been using them for years where appropriate, like installing kitchen cabinets. They're a lot handier than having three different drills, or spending/wasting time changing bits three different times for every hole. One drill for the holes, and one drill/driver for the screws.

I use these now

http://www.irwin.com/tools/drill-bits/wood-countersinks-sets

[chas0218]

23 hours ago, Zem18 said:

 

I brought home a small goodie bag from a yard sale and it had some drill bits and router bits inside. Can never have too many of either. It also had these 2 "thingies" or "doohickeys" and I am clueless as to what they are or used for. Trying to search on the ol interweb but again don't know what I'm searching for or what it's called. It's driving me crazy not knowing so.....

Let's hear it

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Counter sink bits.

[Daveboone]

Hmmmm, cool. 

Hey, maybe countersunk tree taps?