Mildot,
FYI, Armtac is the exclusive distributor of the multitasker tool. We will be shipping the first shipment to Dave Surplus so you will be able to get it in Canada.
In addition, the Series 2 caste nut wrench is only design to tighten the castenut and not loosen it. (The caste nut wrench is not locked to the tool)
However, the caste nut wrench on the Ultralight can be locked to the tool, so u will be able to use it to loosen the castenut. Any additional question of the tools, you can send me an e-mail to info@armtac.com
Armtac