taper shank "lathe chuck" for drill press?

[AilSnail]

I now have an old "8 speed super drill" from kerry's.

It has one of those chucks where you just stick a tapered and a bit flattened drill bit into it.. dunno the name for this.

I want to put a big chuck on it to hold bigger stuff like lathes do. Where can I get that?
A tool holder would be nice too. It has one of those round plates for work table, which can be moved around if screws are loosened.

 

[tvodrd]

What you are most likely describing is a Morse taper socket. They make drill bits with Morse taper shanks, but they're mostly for large diameter bits. You can buy a Jacobs chuck here (Jacobs #36) that will accept up to .800 diameter. The arbors/shanks are sold separately. Your challenge is to determine which Morse taper your drill press's spindle has. I suspect it will be a #3. but if it's a big press, could be #4. If you can measure the entrance diameter, someone here will be able to tell you. The #36 Jacobs chuck comes with a #3 Jacobs taper in the back and you would select an arbor with that taper on one end and the appropriate Morse taper on the other.

Morse taper dimensions.

Larry

 

[AilSnail]

morse taper drill press

thank you tvodrd.

The hole is about 18mm dia. Probably Morse taper 2 then?

I was actually thinking to put on one of those chucks that is found on lathes, to use the drill as an improvised lathe. The tool holder could be mounted on the moveable "work table". Is that a bad idea? It is a pretty hefty bench drill, probably more than 100kg.

On the page you linked, there is one such chuck, a 4" three jaw, for 78,95USD. But I don't know how to tell if it will fit the drill's morse taper hole or not.

 

[gadget_lover]

Re: morse taper drill press

The only way to make this work safely is to make sure that the work is supported from the bottom by a live or dead center. This might counteract the tendency of the taper to work loose when you press from the side. If the taper comes loose the center will keep it from falling all of the way out. It might still ruin your work, but that's a different issue too.

The bearings are not likely to be happy, but that's yet another different issue. The lathe is set up to withstand side loads, and t\he drill press is set up for linear loading.

Assuming you want to cut metal, moving the tool with any accuracy will be your bigger problem. If it's at the wrong angle or digs too deep it may go flying.

I can see using this for wood.

As for determining the taper.... If you have a bit you should be able to measure the taper. The specs are published for the morse taper.

Daniel

 

[tvodrd]

Re: morse taper drill press

The hole is about 18mm dia. Probably Morse taper 2 then?

On the page you linked, there is one such chuck, a 4" three jaw, for 78,95USD. But I don't know how to tell if it will fit the drill's morse taper hole or not.

I concur with the #2. The 3-jaw chuck will only fit a 5C collet socket and the 5C configuration is way different from Morse tapers. 5C's are retained in a spindle with a hollow drawbar and are self releasing. (Most of the time.) Morse and Jacobs tapers "stick" otherwise they would fall out. The one pictured will not work with your drill press.

Larry