Please help identify

[easyrider13]

I found this among my father's tools.
It's about 6-5/8" long.
There are nine pieces numbered 1-9 that stack inside each other.
The ends are round and sharp.
My guess is that these are different size hole punches for leather
although I don't remember him ever working with leather.

 

[RTM]

Laboratory Cork Borer, (not a sawset).

Amazon.com : cork borer

www.amazon.com

Be on the lookout for the sharpener that goes with it. Looks like it should really be far more exciting.

Sharpener, Cork Borer

This handy tool is used to sharpen borers. The solid brass cone has a hinged steel blade in a slot and is mounted in a hardwood handle.

www.humboldtmfg.com

 

[steaks&anvils]

Laboratory Cork Borer, (not a sawset).

Amazon.com : cork borer

www.amazon.com

Be on the lookout for the sharpener that goes with it. Looks like it should really be far more exciting.

Sharpener, Cork Borer

This handy tool is used to sharpen borers. The solid brass cone has a hinged steel blade in a slot and is mounted in a hardwood handle.

www.humboldtmfg.com

Yep, cork borer. I have a set, but much more simple design. I got mine from a laboratory that was closing. It was in the back of a drawer and had not been used since god knows when. Yes it was heading to the dumpster when I saved it.

 

[4xdog]

My cork borer set (newer than yours, although I've worked with the old brass ones for years in my laboratories) is one of my favorite specialty tools. They cut perfectly round holes in just about any soft material.

Keep your eyes open for its sharpener. A funny looking conical piece on a handle with a dull blade that swings out of the side. One sharpens a cork borer by putting it on the cone until it's a tight fit, pressing the dull blade against the edge, and turning. The sharpeners work surprisingly well, and a really sharp cork borer cuts a LOT better.

 

[steaks&anvils]

My cork borer set (newer than yours, although I've worked with the old brass ones for years in my laboratories) is one of my favorite specialty tools. They cut perfectly round holes in just about any soft material.

Keep your eyes open for its sharpener. A funny looking conical piece on a handle with a dull blade that swings out of the side. One sharpens a cork borer by putting it on the cone until it's a tight fit, pressing the dull blade against the edge, and turning. The sharpeners work surprisingly well, and a really sharp cork borer cuts a LOT better.

For future reference, from "RTM" post above:

 

[easyrider13]

Thank you.
My father was a chemist so that fits.