Coleman Powermax Adapter

I have used a Coleman X-series stove for about 10 years. Though it is a little heavy and bulky for backpacking use, it is easy to light, has a large, even flame, and has great temperature control. The main drawback has been the difficulty in finding fuel cannisters, especially in the last few years. I was about to switch to a different stove, but I thought I would try this adapter first. It works great. I have used it with the Snowpeak threaded butane/propane cannisters (it will work with the MSR cannister or any other butane/propane cannister that has the standard thread size).

I ordered this adapter via online, and when I connected it to the stove, nothing happened. I switched to different stoves--I tried it on Snow Peak's Gigapower, Primus' Micro, even Coleman's own F1 Ultralight, etc., knowing each manufacturer's dimension at the valve is slightly different. Still nothing.
Upon close examination, I discovered that there was no hole at the female connection point for the gas to come through the adapter. So, I returned the item, and waited for another one.
Unfortunately, the second one was the same--no hole drilled for the gas to come through, and no gas would pass--(pun intended). Back to REI to return it. This time, I am going to wait a few months, before I order one.
I was hoping to read others' reviews on this item, but it appears I would be the first one to review.
The stoves that Coleman made this adapter for--Exponent series' Xpert, Xtreme, etc.--are superb stoves, although their looks may not win the beauty contests.
There is a rumor that Coleman would stop the production of the aluminium canister, so the adapter would be an essential item to have.
I was doubley disappointed--twice in a row, and I think this was a failure of Quality Control on Coleman's part. Maybe there will be a good batch available later.

You will need this item when there are no original canisters, either outside US or in the near future, when these original coleman canisters are not sold any more