Rockwell 15-69 chuck key size

[Galaxie]

Finally found a deal om a Rockwell DP, anyway only thing missing was the chuck key and nothing on hand fits. Seems the pilot needs to be bigger than 1/4" and no idea on the rest. Everything is stock as far as I can tell model 15-69.

 

[uniballer]

I have spare but I need pic, im away from shop now but remember the looks. Can always message tomorrow when i get to work. still load a pic to see.

 

[Outlawmws]

Use a drill shank to "measure:" the hole, but FWIW my Rockwell, a 15-017, uses a Key with a .271 pilot.

 

[Galaxie]

I have a 9/32 coming tomorrow from a buddy, which is slightly bigger than that guess I'll go from there.

 

[1steve]

What info is on the chuck? Could it possible be 11/32 hole?

 

[Galaxie]

Don't remember seeing any numbers, I'll look again this morning. Everything appears to be stock on the drill.

 

[buening]

If you can locate the model on the chuck (because no guarantee its the original chuck), you can look it up on this chart:

http://www.jacobschuck.com/images/products/accessory.pdf

 

[Galaxie]

Missed the numbers when I looked the first time. Chuck is a multicraft:

15/64th is smaller than 1/4 but a 1/4 pilot doesn't come close to working, busy day and didn't try the 9/32 yet. Wish I would have taken a better pic pretty sure it is not 25/64th but they do exist.

Looks to be a '78 model:

 

[Outlawmws]

That Multicraft is the same chuck I have on my DP. .275 pilot (that's what I just remeasured) 17/64 drill bit shank is sloppy, 9/32 won't fit...

My key is also a "safety key" with a spring loaded pin in the center to keep it from being left in the chuck, and the DP turned on, turning the key into a projectile... (Not sure I like that "feature"...)

 

[Galaxie]

Sounds good, I have had those safety keys before and like them.

 

[buening]

The chuck model number is actually on the lower part of the chuck near the holes for the chuck key. That looks like the same one on my Rockwell 15-017. I bought a new Jacobs 34-33C and it is MUCH beefier than the multi-craft. It also has the threaded collar for the Rockwell spindle.