Drill press chuck key size

[caretakereg]

I have just brought a second hand drill press chuck but has no key and can not work out the one to order.
Its the hole in the side, well 3 holes that you put the key in.
Details are Jacobs . USA, 34 - 06.6 Taper. (the taper is MT2).
0 - 1/2 in cap
0 - 13 mm.
The hole for the key is 7 mm.
Any idea what size to order and where ?

 

[AndyT]

Possibly one of these

https://www.arceurotrade.co.uk/Catalogu ... ill-Chucks

Or these

https://www.chronos.ltd.uk/cgi-bin/ss00 ... &ACTION=Go

 

[caretakereg]

Chuck key now ordered, thanks Andy

 

[Cheshirechappie]

Just for future reference, here's a link to a Jacobs chuck key selection chart;

https://d2pbmlo3fglvvr.cloudfront.net/i ... _eZtip.pdf