In the states you can get these oilers on Amazon for ~$10. I've had one for years.
In the reviews many people complain about them leaking. I haven't had that problem with mine, but the oil I use is my standard "oiling" oil: hydraulic fluid. This might be a thicker oil than some people are trying to use.
This oiler and a plastic needle tipped oiler with steam oil are my goto's for my steam engines.
Rockler sells a precision oiler for $6.99 if there is a store close in the USA.
I have been tempted to buy one of these, but have stuck with the long needle tipped plastic squeeze bottle for more precision control of drop size and getting in small places...the tip of the pen oiler looks 2X the size of the needle type.
Rog
I have been tempted to buy one of these, but have stuck with the long needle tipped plastic squeeze bottle for more precision control of drop size and getting in small places...the tip of the pen oiler looks 2X the size of the needle type.
Rog
Quite right. Don't try to oil your clock with this. "Precision" is a bit of a misnomer....
Jim, I have a couple of those and I may have gotten them near 5 years ago on your recommendation. Good video!
I have been tempted to buy one of these, but have stuck with the long needle tipped plastic squeeze bottle for more precision control of drop size and getting in small places...the tip of the pen oiler looks 2X the size of the needle type.
Rog
Quite right Rog. The precision clock oilers have a tip about 1/3 the size of the metal pen oiler.
Gil
I have been tempted to buy one of these, but have stuck with the long needle tipped plastic squeeze bottle for more precision control of drop size and getting in small places...the tip of the pen oiler looks 2X the size of the needle type.
Agreed, i still have my needle oilers and was very grateful for you shipping over a supply to me Rog. I find they are perfect for my needs and are even small enough to get down the holes in my oil cups on my Stuart engines.
I have looked at those pens ones before, i may get one to see what they are like but i think the needle ones are the best.
The needle ones are great and I use the ones that Knut sent me 6 years ago daily, but they don't slip in your pocket like these pen ones do.
and it takes a lot of squeezing to get steam oil out of the needle oilers when filling a lubricator, so I really need to give these a try...
and it takes a lot of squeezing to get steam oil out of the needle oilers when filling a lubricator, so I really need to give these a try...
...on a cold day in Minnesota I bet the honey doesn't pour to easily either Nick
...on a cold day in Minnesota I bet the honey doesn't pour to easily either Nick 
A couple jars of maraschino cherries froze in the cupboard this past winter

I've finally placed my order, and it was about half the cost per oiler to buy 4... so 4 will be here on Saturday
1. Steam Oil
2. Keith Appletons Oil mix
3. Wilesco Oil
4. 3 in 1 Oil
I have owned one of these for quire a few years, and it works very well! I have light mineral oil in mine for bearings. One trick I learned when using thee pen is; you can vary the size of the oil drops by changing the amount of time you press the button and have the tip open. The full sized drop are fine for the bearings of a pre-war Märklin or a Doll stationary engine, but a smaller drop for small fast rotating turbines (like the Karsten Gintchel models I've owned), unless you want your shirt accessorized with a fine mist of oil.
I beleive you would need a bit of patience if you load heavier-weighted steam oil, such the Regner's product, so I stick to lighter oils for my pen.
Dave