OHTO Extremely Thin Mechanical Pencil Minimo Sharp, 0.5mm, Black Body (SP-505MN-Black)

This is my favourite mechanical pencil. Very thin, small and elegant

The brilliant thing about this pencil is how small and well engineered it is. You can slip it into the coils of a spiral notebook or into a tiny bit of spare space in an EDC pouch. Or you can use the supplied plastic card to store it amongst the pages of a notebook or diary. It's perfectly functional, although its slimness means that you would only want to use it for occasional brief notes. And that's fine because the slimness is why you bought it. I've knocked off a star because the supplied leads are about 4H which makes the writing too faint for my liking. Also the Minimo is very finicky about what leads it will accept. First of all it's important to know that "0.5mm" leads are actually 0.6mm thick - no, I don't understand it either. I tried some "0.5mm" Ryman HB leads which measure 0.64mm on my Vernier caliper and they are too thick to go in the Minimo. Then I bought some Pentel Ain Stein HB "0.5mm" leads which measure EXACTLY 0.60mm and they work fine.

The pencil fits nicely in my wallet. Good quality. Did have some delivery issues but was eventually sorted.

Well, I have to blame myself. I wanted a SMALL pencil. But this is so small you csn hardly hold it.

Tiny, slim and stylish !

This incredibly small mechanical pencil uses widely available 0.5mm leads. It fits inside a box of playing cards, or in my case, my pocket box of watercolour paints perfectly. It’s just a pity that it’s body is black which, given its tiny size, makes it so hard to find if you put it down. Bright red/orange would be better.

Fits in my mini diary

It's very short at 920 mm, very thin at 3.5 mm diameter and the dimension over the removeable clip is 5 mm. It's awkward to use but for my purpose, marking things in narrow spaces it's almost ideal. It came with a plastic card for it to fit into which in turn could fit in a diary or small notebook. Normal pencils are often too large in diameter for marking in narrow spaces and I couldn't find on sale my first choice which is those pencils you sometimes get tucked in the spines of diaries.