If you’ve followed my blog for a while you might have noticed that I’m fond of Deli’s crank sharpeners, particularly the Deli 0635.
It’s nice to see that the quality of the Deli seems to be good enough for the big and well-established brands, too. Faber-Castell offers a sharpener, the 952500, that seems to be a Deli 0635 in disguise.
Koh-I-Noor, too, picked a Deli as an addition to their line: the 0668, but they call it the 9095. The 0668 has been resold by a few other companies, too, including Kikkerland.
After a bit more than three years and many posts later the Bleistift Facebook page reached 100 likes this week. Well, I have to confess that I cheated and invited some of my friends to like the page, anyway: next aim: 200 likes by 2018, but that will be more difficult, as I have already invited some friends plus some people will probably unlike the page over the next three years. We will see…
Wopex vs Noris
Anyway, onto the real blog post:
You might remember the blog post about the Staedtler 501 180 sharpener. Staedtler’s rotary sharpeners start with 501 and their Wopex pencils are associated with the number 180. Despite this sharpener being officially available in the UK I didn’t come across it yet, so I keep using my Deli to make a great Wopex point. Here’s a comparison of a Wopex, sharpened in a Deli 0635 and a Noris, sharpened in the same Deli.
In my previous blog post I mentioned the Deli 0620 sharpener I bought when I was in Shanghai.
I you have followed my blog you might have noticed that I am very fond of Deli sharpeners. The Deli 0635 and the Deli 0668 are in fact my most often used sharpeners.
Why do I only mention these two models and no other Deli sharpeners? The problem with Deli sharpeners is that most seem to be aimed at children or pupils and look a bit too cartoony to put on your desk in the office – so when I came across a serious looking Deli sharpener, the 0620, I was quite excited.
The moment I saw this sharpener I thought of the Classroom Friendly Sharpener. I don’t have one myself, but having seen pictures of it in the past I thought this Deli 0620 looks very similar …but I had to wait until I was home to be able to compare the 0620 with photos of the Classroom Friendly Sharpener. More about this later.
Cheap and full of features
I paid 45元 (~ $7.25; €6.25; £4.75) in the stationery shop on Xiangde Road, mentioned previously. Unlike the 0635 and the 0668, the 0620 features a metal case and is quite a bit bigger. It has a very solid feel to it and comes with a desk clamp and a spring driven pencil holder that features auto stop (as expected). The 0620 seems to sharpen with the same angle as the 0635: it will produce a slightly concave point with an angle of ~ 17°.
Oh no, tooth marks!
This all sounds great, but I have a big problem with this sharpener: it leaves tooth marks on the pencil, because the grips that hold the pencil while sharpening are not rubber covered. I guess many people don’t mind. As far as I know some of the best sharpeners do leave tooth marks, like the expensive El Casco sharpener as well as the cheaper, but still very expensive Caran d’Ache sharpener.
The problem is: I do mind! There are some things others seem to mind, like bar codes on pencils, that I don’t mind. On the contrary, I often even like them …but tooth marks? Maybe one day I can accept them, but not at the moment, so I fear my 45元 were not very well invested. I could try ‘improving’ the tooth mark situation by putting Sugru on the grip mechanism, but the point produced by the Deli 0635 is so similar, I might as well use the 0635 instead of the 0620If I had some Sugru I might try ‘improving’ the 0620. Maybe I buy a pack one day, once it’s open it needs to be used up soon anyway, which might be a good reason to use some of it … Continue reading.
If you can cope with the horror: click on the bite mark picture to see the mutilated pencil in higher resolution.
The Deli 0620 and the Classroom Friendly Sharpener
One interesting point, mentioned earlier, is the similarity of the 0620 to the Classroom Friendly Sharpener. According to the pictures I have seen I would say the two sharpeners are more or less identical. I guess there could be several reasons for that, the most likely probably being that
The Classroom Friendly Sharpener is actually made by Deli
Both are made by another company
One is a copy of the other, or both are a copy of another.
I don’t think one of these sharpeners is a copy of the other one. My guess would be that the the original isn’t famous enough to warrant a copy being made. Also, if you look at copied stationery, e.g. a Lamy Safari and a Hero 359, the copy is often of much worse quality than the original. I can’t really judge how the quality of both sharpeners compares as I only know the 0620, but it seems to be pretty well made. The only problem I encountered was that I couldn’t remove the burr mechanism. This problem doesn’t seem uncommon for Deli. Once I had two batches of 0635 in front of me, and one batch was perfectly fine, but on the other batch I couldn’t remove the burr mechanism on any of the sharpeners I don’t think they are glued on on purpose as I can’t see any sense in that. I wonder whether there are other reasons, e.g. some tolerance issues and some parts being a bit too big, or … Continue reading. I assume that if you use enough force you could get the burr mechanism out.
A great looking sharpener that disappoints because of the tooth marks it leaves. Otherwise great value for money, like other Deli sharpeners.
As mentioned by Gunther and Koralatov in the comments: there are other sharpeners that seem to be produced in the same factory: the Carl Angel-5, the Kw-trio 031VA and the Helix A5.
Assuming the sharpener is made by Deli, because the point produced is so similar to the one produced by the 0635 What a shame that it’s so difficult to remove the burr mechanism for a comparison, the question is: Did the 0620 get this acute, concave angle because of Deli’s existing mechanism or was this model’s angle always like this, even before Deli made this sharpener, and Deli made its mechanism like this to fulfil Carl’s (or whoever ordered this sharpener first) requirements?
I don’t think they are glued on on purpose as I can’t see any sense in that. I wonder whether there are other reasons, e.g. some tolerance issues and some parts being a bit too big, or whether the sharpener was assembled before the paint could dry properly, etc.
Today: a comparison of different Tombow erasers – the Tombow Mono Zero, available either with a 2.3 mm round tip or broad 2.5 mm * 5 mm rectangular tip, and the Tombow Mono One, an eraser that looks as if it’s supposed to be used on a keyring or as a charm. I wrote this blog post originally for The Pen Company who send me these two erasers free of charge.
Mono Zero background
The Mono Zero was originally released on 12 November 2007 and since its release it has won the iF product design award 2010 and the red dot design award 2010. It has also received Japan’s eco mark certification because of its high content of (pre-consumer) recycled plastic. The body of the eraser is made in Japan, while the eraser core itself is made in Korea. The Mono Zero has been designed by Ms. Chisato Takahashi, who is also responsible for the Mono smart. I got mine as a free sample from The Pen Company where the current retail price is £3.47.
Mono Zero body
The Mono Zero is available either with a 2.3 mm round tip or broad 2.5 mm * 5 mm rectangular tip and each of these versions is available in either a black body or a black, white and blue body. There used to be a silver version as well, which – to me – always used to be by far the least attractive looking version. This silver version does not seem to be available anymore.
Mono Zero eraser
The eraser itself does not fill the whole body. This might come as a surprise when you have used other pen shaped erasers that come in a plastic body, but is not not really a problem. You do get slightly less eraser for your money, but the whole eraser (body plus eraser) itself is not expensive and the eraser core will still last a long time. Just to mention is explicitely, there are also refills available for these erasers, like for most pen shaped erasers. Labelled as an elastomer eraser, the Mono Zero contains an eraser made from ethylene propylene copolymer. When I received the eraser I did try it out and compared it to my favourite kind of eraser, a dust-free or non-dust eraser (as long as it’s a dust-free eraser I usually like it very much). It’s probably not fair to compare it to my favourite type of eraser, or let’s say not objective – others might not like dust-free erasers, but then this comparison is a valid approach as I am writing about what I like or dislike about the Mono Zero.
For the pencil to be erased by the Mono Zero – I originally thought what better match could there be for the Tombow Mono erasers than a Tombow pencil, so I picked last year’s 100th anniversary special pencil.
Mono Zero performance
To my surprise the two Tombow products, pencil and eraser, didn’t seem to be able to cooperate that well with each other. This was due to the fact that the Tombow pencil is very soft. According to Pencils and other things the 100th anniversary edition has the same lead as the current Mono 100, but my 100th anniversary pencil seems much softer (and smudges easier) than a Mono 100 (both HB). I am not sure whether I’m imagining things here, or I just happened to have a softer than usual 100th anniversary pencil and a harder than usual Mono 100, or whether the lead is the same, but there’s actually a shift in grade (e.g. 100th anniversary HB = Mono 100 B). In any case, the Mono Zero was not able to eraser a strong line, i.e. drawn with some pressure, without a trace. It did however manage to eraser strong lines of harder pencils, in this case a Staedtler Mars Lumograph in HB, without a trace.
Mono Zero conclusion
My impression of the Mono Zero was that it’s not the greatest performer when it comes to actual erasing (worse than a non-dust / dust-free eraser), but its strong point is precise erasing …because of the tip size and shape (a bit like a Kokuyo eraser). When I was looking for other blog posts to mention in this review I rediscovered Dave’s review of the Mono Zero, which came to the same conclusion regarding eraser performance.
A great eraser, because its fine ‘tip’ allows precise erasing, even though eraser performance itself could be better.
The Mono One, designed by Mr Kazunori Katami, who holds a lot of stationery patents, was released slightly earlier than the Mono Zero – on 5 February 2007. The Pen Company is selling this eraser for £2.60. The body of this eraser is also produced in Japan (no eco mark certification for the Mono One, though), while the eraser itself is made in in Vietnam. Labelled as a plastic eraser, the eraser is made from thermoplastic elastomers. Despite the different materials, performance seemed pretty similar between the Mono Zero and the Mono One, with the Mono One maybe performing a little bit better.
The Mono One does not offer as precise erasing as the Mono Zero, the tip is bigger, but it is a nice size, which makes it a great eraser to carry in a pencil case bag or, possibly even on your key ring.
I would like to thank The Pen Company for these erasers, I got them as free samples, and Mrs. Balsewicz from Tombow Europe for all the information she has given me about these erasers.
I would like thank Sean for the Tombow 100th anniversary pencils.