Identify these drill bits please

[COL911]

I know these probably fit an old style bit and brace hand turned drill, but can they also be used in a modern power drill or drill press, assuming the four sided bit can fit securely into the chuck? Some of these are marked Irwin, Stanley, etc.

If they can't be used in modern drills, I don't have use for them; are they particularly collectible or valuable? Thanks in advance.

 

[COL911]

I also have these, same 4 sided ends; assuming they are for machining. The pointed edged one is marked Craftsman. What the heck are these for?

Would these work in a modern drill press for light machining?

 

[PelicanPines]

Brace bits.

No... not for a drill press. Won't handle even the lowest RPM

Value... sorry, don't know.

 

[Stuart in MN]

I doubt you can make them fit in a Jacobs style chuck. They're really only good for use with a brace and bit, and would have value to someone who still uses them.

 

[Cope]

I also have these, same 4 sided ends; assuming they are for machining. The pointed edged one is marked Craftsman. What the heck are these for?

Would these work in a modern drill press for light machining?

Top two are screwdriver bits, the third is a countersink. Not sure on number four.

 

[PelicanPines]

Forth is a spanner brace bit.

 

[COL911]

Thanks for the input! Shame, this one, marked Clark Expanding, bit is adjustable from 7/8 to an additional 1/2 inch. Any one collect these? I got no room.....

 

[Furd50]

This last one is missing the cutter that would slide in the groove, being locked in place by the screw. Without the cutter it is worthless in my opinion.

 

[PelicanPines]

Furd... you beat me to the missing cutter comment...

While those as a group are cool bits... do you have the brace handle? That's where you could have value... people do collect cool braces.

 

[jumbojak]

If you find a brace they work very well provided the screw on the tip isn't mangled too badly. I have quite a few and like to use them when appropriate.

 

[COL911]

Furd and Piney,
The adjustable piece is there, I just centered it up for the photo. Maybe I'll break out the old brace that I think is is Gramps' old wooden toolbox in the attic and try them next time I have a project. Thanks again

 

[OccupantRJ]

I cut the square drives off and chuck them in a keyed chuck reversable drill. You need reverse if you have to back one out due to the self feed screw tip.

 

[Miss the Pontiacs]

I know these probably fit an old style bit and brace hand turned drill, but can they also be used in a modern power drill or drill press, assuming the four sided bit can fit securely into the chuck? Some of these are marked Irwin, Stanley, etc.

If they can't be used in modern drills, I don't have use for them; are they particularly collectible or valuable? Thanks in advance.

I've cut the end off these for years at work and used them in a corded/battery drill. Still have the hand brace and maybe still have some bits that haven't been destroyed. The bottom bit in pic I would not have cut down so probably have at least a couple of the adjustables floating around. When the kids go for the bottom of bins down the road maybe some picker will be interested.

 

[jimreed2160]

They are all for use with a cordless drill. I keep a brace loaded with a countersink in my shop. It gets lots of use.

 

[Carla]

I also have these, same 4 sided ends; assuming they are for machining. The pointed edged one is marked Craftsman. What the heck are these for?

Would these work in a modern drill press for light machining?

The countersink bit would work with a modern drill press or drill motor, if you cut the tapered square shank end off.....no problem.... : )

That lowest one in the photo is one you are very unlikely to ever need, unless you work on 1905-1925 vintage car/light truck engines. Its meant to be used with a drill brace, to engage the two shallow holes in a valve head, for hand-lapping the valve to its seat, using a 'valve lapping compound', a fine abrasive mixed with oil or soft grease.

cheers

Carla

 

[COL911]

Can anyone explain show how the spanner brace bit is used?

 

[davethorik]

Can anyone explain show how the spanner brace bit is used?

I'd guess like a more modern spanner wrench...used to drive something with two holes in it.

 

[mikegt4]

I don't know if any brace bit would work satisfactorily in a modern drill. They were made for turning at 20 rpm (or less) into wood or for tightening screws into pre-drilled holes. They are not as hard as a modern bit.

My Dad used a brace or Yankee drivers almost exclusively and I still have them and even some of his Dad's. I drove many a screw with a brace when we built a small sailboat in the early 1960's.

 

[muddywater]

Used those expanding bits with a brace when younger...cut holes in cabinet backs for plumbing.
Still have them.

 

[PelicanPines]

Can anyone explain show how the spanner brace bit is used?

That spanner bit is for a specific size fastener. Probably a common size on a machine of the time.