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  • uni Core Keeps Sharp Mechanical Pencil, Gun Metallic (M510171P.43)

uni Core Keeps Sharp Mechanical Pencil, Gun Metallic (M510171P.43)

4.7 out of 5 stars (8,895)
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Size: 1 Count (Pack of 1)
Color: Gun Metallic

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About this item

  • Lead Rotating Technology Mechanical Pen, Kuru Toga
  • Country Of Origin : Japan
  • For 0.5Mm Lead, Gun Metallic Body
  • Package Quantity : 1
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This item: uni Core Keeps Sharp Mechanical Pencil, Gun Metallic (M510171P.43)
$9.17
Get it as soon as Tuesday, May 12
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Uni Pencil Lead, The Uni" Smudge-Proof Leads, 0.5mm HB, 40 Leads x 5 Pack
$8.45 ($1.69/count)
Get it as soon as Sunday, May 17
Sold by Neo field of Japan and ships from Amazon Fulfillment.
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  2. uniball Kuru Toga Elite Mechanical Pencil Starter Kit, 0.5mm, HB #2, Silver Barrel, 1 Pack
     
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  5. uniball Kuru Toga Mechanical Pencil Starter Kit, 0.7mm HB#2, 1 Pack
     
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  6. Uni Kuru Toga Metal Mechanical Pencil, Auto Lead Rotation, 0.5mm Fine Point, All-Metal Body, Nocturne Black, M5KH1P.24
     
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Product Description

The Kuru Toga Is A Mechanical Pencil Which Core Is Kept Sharp. It Has A Kuru Toga Engine That The Core Rotates Little By Little While You Are Writing. You Can Always Write With Constant Thinness And Density.

What's in the box

  • Mechanical Pencil

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    Customer reviews

    4.7 out of 5 stars
    8,895 global ratings

    Customers say

    Customers find this mechanical pencil to be the best they've used, praising its rotating lead mechanism and writing performance. They appreciate its ergonomic design, good weight distribution, and consider it well worth the price. The durability receives mixed feedback - while some say the lead never breaks, others report it breaking easily.
    AI Generated from the text of customer reviews

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    764 customers mention quality, 741 positive, 23 negative
    Customers praise the mechanical pencil's quality, describing it as the best ever made.
    Great pencil, but I constantly had the lead getting stuck in the tip. There is now an immovable piece of lead and the pencil has become unusable.Read more
    Best mechanical pencil I've ever had. Combined with the Pentel Lead, 0.5mm, 2B it gives the best writing experience I've ever had.Read more
    It is really great mechanical pencil! I used to use pentel graphgear 1000. But somehow it was broken someday ago and I ordered Uni mechanical pencil....Read more
    This is the best pencil I have ever owned. It's looks beautiful is incredibly well made and durable, and the auto-rotate mechanic works like a charm....Read more
    270 customers mention lead rotation, 200 positive, 70 negative
    Customers appreciate the mechanical pencil's rotating lead mechanism, noting that it works well as you write.
    ...Another advantage of the rotating mechanism is that it cushions the tip a bit, reducing lead breakage. You certainly can't go wrong with this pencil!Read more
    ...Writing is smooth, the lead NEVER seems to break because of the rotating lead feature, the weighting is just right. Also, just a great looking pencil!Read more
    ...Lead rotation. Due to the mechanism that rotates the lead, there is some give to the lead as begin to write....Read more
    ...The lead rotates as you write which is a unique feature that sets it apart. I'm quite happy with this pencil & won't need any other after this.Read more
    214 customers mention writing performance, 203 positive, 11 negative
    Customers find that the mechanical pencil writes nicely and improves their handwriting, with one customer noting it's perfect for small writing.
    It writes very well. Very sturdy, I don't feel the lead breaking. Firm response. I get complements from this pencil too!Read more
    ...It writes well, fine detail, the Kuru Toga rotates the lead as you write so it does not get dull. Comes with couple of leads and eraser....Read more
    ...Cut to this pencil: not only is it great for writing because of the rotation of the tip, the eraser can be raised as it wears down, AND the...Read more
    ...Combined with the Uni diamond infused soft leads, you get a smooth writing, dark imprint without excessive force and the diamond infusion seems to...Read more
    212 customers mention ergonomics, 177 positive, 35 negative
    Customers appreciate the mechanical pencil's ergonomic design, noting its pleasant feel in hand and comfortable grip, with one customer mentioning it feels great for less than $10.
    ...grips on a lot of other pencils, the knurled metal looks and feels great, plus gives me something substantial to hold on to....Read more
    Took a while to get in, but worth the wait! Feels good. Looks good. There is a Silver option with prime if you're in a hurry. I like that one too.Read more
    ...The price for the value is pretty decent too. Feels great in the hand with the weight distributed nicely and the material not being irritating.Read more
    ...The pencil has a nice weight and feel to it, except for the metal grip....Read more
    209 customers mention weight, 169 positive, 40 negative
    Customers appreciate the pencil's weight, describing it as nice and solid, with one customer noting that the mechanism in the tip adds enough weight.
    Nice weight, great color, don't overload the lead chamber with too much lead as it will crush it to dust, and it's really durable, i drop it all the...Read more
    ...Had a good weight and looks really nice. Does not come with additional leads, would have been better to get a lead pack along with it.Read more
    ...Much better than the plastic version marketed in America. Great weight and feel, and of course the turning tip is a plus.Read more
    my favorite pencil ever, its just heavy, grippy and overall gives you the sense that it is high quality, the lead rotates every time you place the...Read more
    164 customers mention functionality, 135 positive, 29 negative
    Customers find that the mechanical pencil functions well, with one customer noting it performs particularly well for extensive writing tasks.
    works great just not what i thought the seller shipped fast and it was new. It was a bad choice on my part.Read more
    ...PROS: Works as advertised Eraser cap clip grip is hard, (<<I like this) not like Dr. Grip pencils stylish...Read more
    Solid buy, worth all the money. Reliable, light. The special feature keeps the tip of the pencil fairly sharp.Read more
    I have had this for over an year now and it works very well. If you are someone who doesn't use a separate eraser this would not be good for you....Read more
    154 customers mention value for money, 121 positive, 33 negative
    Customers find the mechanical pencil to be well worth the price, with one customer noting that the quality feels better than expected for the cost.
    ...work from old pencils to this one has convinced me this pencil is worth it, but I'm also picky about that stuff so not everyone may agree....Read more
    ...The clicking has a nice solid feel to it, and I think its worth the money. Would buy againRead more
    worth every penny, straight up from JAPAN. buy and you will not regret it. i prefer mechanical pencil than penRead more
    This is the most expensive pencil I've ever bought and I do not regret it. After a couple weeks of High School work I have some pros and cons....Read more
    178 customers mention durability, 114 positive, 64 negative
    Customers have mixed experiences with the mechanical pencil's durability: while some report that the lead never breaks, others mention that it breaks easily and the 0.5 mm lead is particularly fragile.
    I bought this 2 years ago. Still use it. It is durable - I have dropped this quite a few times. It looks nice, and does the job.Read more
    ...Cons: the tip of the pencil is very fragile and breaks easily. The tip doesn't retract like other mechanical pencils Eraser is very...Read more
    ...It's super durable so you don't have to worry about it breaking on youRead more
    ...It's weighty and feels solid. The lead doesn't break. It truly is always sharp. My only complaint is the tiny tiny eraser.Read more
    Great for using grips!
    5 out of 5 stars
    Great for using grips!
    I really like that it’s fairly cheap and the packaging it came in was awesome! It felt very nice and gave a very good impression of said product, it opened easily one you cut the outer “latch” it will be a very nice addition to my school bag. Do be aware that it really doesn’t have an eraser as far as I can tell but should that be a deal breaker for you just stick to your cheap 50 packs this product isn’t meant for that it’s very good practice just to have an eraser anyways this is an awesome introduction into nice mechanical pencils for people who are trying to get into that hobby (like me) I hope this review finds you well and that you will have a good experience like I did :) (FYI I didn’t rate it five stars on ergonomics as you’d have to add a grip for that as not everyone will find a plain barrel perfect for them but it comes with a good barrel to grip onto anyways)
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    Top reviews from the United States

    • Ani
      5.0 out of 5 stars Sturdy, good led control, smooth writing
      Reviewed in the United States on March 25, 2026
      Color: Gun MetallicSize: 1 Count (Pack of 1)Verified Purchase
      One of the best mechanical pencils I have used. Sturdy, led moves smoothly and I like the rotation. Compared to a similar plastic one this is more than worth the slightly higher price.
      Helpful
       Report
    • Chris Anderson
      5.0 out of 5 stars Best pencil I've ever used
      Reviewed in the United States on March 27, 2015
      Color: Gun MetallicSize: 1 Count (Pack of 1)Verified Purchase
      I guess I'll start off by saying I'm a bit of a pencil connoisseur. I've bought plenty of nice pens and pencils, most with some novelty like Dr Grip or Zebra Delguard, and I bought this pencil as a replacement for an old, cheaper Kuru Toga I had used for about a year. Although I purchased this simply as an addition to my collection, since I received this I have hardly used anything else.
      First let me say that Kuru Toga pencils have the best output. It's very difficult nowadays for me to go back to other pencils which result in broader lead strokes, especially when I'm using it for subjects such as physics and calculus where I'm constantly scribbling out tiny symbols and equations. The rotating tip in these pencils significantly does allow for a finer pencil stroke (and incidentally saves lead and paper space).
      Bearing that in mind, this particular pencil is the perfect version of the Kuru Togas. I love everything about it. This pencil has a bit of weight to it, which most mechanical pencils lack. That's not to say it's uncomfortable though. The mechanism in the tip adds enough weight to perfectly balance the pencil right in the center of where it's gripped, and I have literally written hours upon hours nonstop with it in complete comfort. On top of that, the pencil looks absolutely amazing. The shaft is matted black plastic that looks like metal and looks sleek and cool, while the grip is textured and feels and looks great. Everything about it is cool and has a unique aura of class and sophistication.

      My only little irrelevant complaint is that the window which shows the tip spinning is rather small (most other Kuru Togas have windows which wrap around the pencil so you can perpetually see the logo spinning as you write). However, this just adds to the subtlety which makes this pencil so fashionably great.

      So, this pencil is perfect. It feels great, it looks great, and it performs great. The last Kuru Toga I had has lasted now for more than a year, and the quality of this pencil is so fantastic I expect to be using it for years to come.
      It is absolutely perfect.
      13 people found this helpful
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    • Rocket
      5.0 out of 5 stars More Consistent High Quality Mechanical Pencil
      Reviewed in the United States on November 14, 2018
      Color: Gun MetallicSize: 1 Count (Pack of 1)Verified Purchase
      I use this mechanical pencils in school for high quality writing that looks neat consistent without the need to constantly sharpen. (which is why I use mechanical pencils over standard wooden pencils) This mechanical pencil fulfills this need, some other lower quality pencils I use just don’t do the job as well as the Uni Kuru Toga Roulette.
      Pros
      - The build quality is great
      - The grip is surprisingly comfortable
      - The spinning lead feature is good
      - The design is very nice

      Cons
      - Writing in cursive doesn’t spin the lead
      - You need to press a little bit harder to spin the lead

      Firstly I will state the obvious the build quality is great, and the design of it is slim and sleek without unnecessary parts protruding out. The grip as well feels comfortable as well which I thought wouldn’t be the case after writing for several hours, however I was wrong. However you don’t by this pencil just for the build quality you buy this pencil with the rotating lead in mind. Which I think is implemented finely, however the system isn’t perfect. For instance for cursive writers the spinning of the lead wouldn’t always actuate, and for people who write normally you do need to apply slightly more pressure than just putting the pencil on paper. (You could probably get used to it overtime) Overall if you’re looking to buy this pencil to have consistent writing I think it is a great buy the spinning lead whilst not perfect definitely does as advertised and the build quality is very nice.
      I would definitely recomend this to people who want a high quality mechanical pencil that lasts long, and people who want an extra layer of consistency to their handwriting. As for people who write a lot cursive I don’t think it is a deal breaker that the lead won’t always spin after every letter (mainly because it would still spin after every word, and the pencil still feels great) however due to the price I would maybe consider other similar quality options.

      TL DR
      High quality, designed well, feels comfortable, writes consistently. No huge cons, but takes a little bit of time to adjust the amount of pressure when pressing on the paper when writing to turn the lead, and cursive writers don’t benefit as much from the design.
      7 people found this helpful
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    Top reviews from other countries

    Translate all reviews to English
    • Phil
      5.0 out of 5 stars Guter Stift, funktioniert wie beschrieben
      Reviewed in Germany on February 7, 2026
      Color: Gun MetallicSize: 1 Count (Pack of 1)Verified Purchase
      Ordentlicher Druckbleistift. Kommt in einer einfachen und leicht zu öffnenden Plastikverpackung.
      Achtung. Keine extra Minen vorhanden. Liegt gut in der und schreibt ordentlich.
      Für den Vorschub benötigt man leichten Druck. Ist man ein Schreiber/Zeichner, welcher nicht fest aufdrückt, muss man mit etwas Druck nachhelfen, ansonsten funktioniert die Drehung sehr gut und man hat immer eine schöne dünne Linie.
      Für den Preis hätte ich mir den Stift aus Metall gewünscht. Preis kommt aber vom Import aus Asien
      Report
    • Luca
      5.0 out of 5 stars Qualità e precisione GIAPPONESE, must have
      Reviewed in Italy on January 13, 2026
      Color: Gun MetallicSize: 1 Count (Pack of 1)Verified Purchase
      The media could not be loaded.
      La matita è una gioia da usare. Confezione semplice ed elegante con tutte le scritte in giapponese, c'è già la mina dentro, la sto utilizzando da qualche giorno e sono estremamente soddisfatto! Il tratto è sempre uniforme e preciso, la finestrella sull'impugnatura mostra la rotazione del meccanismo.
      Costa un po' per essere una semplice portamine, ma se si ha intenzione di "trattarla bene" è un investimento che ripaga con l'esperienza di scrittura! Consigliatissima!
      Customer image
      Luca
      5.0 out of 5 stars
      Qualità e precisione GIAPPONESE, must have

      Reviewed in Italy on January 13, 2026
      La matita è una gioia da usare. Confezione semplice ed elegante con tutte le scritte in giapponese, c'è già la mina dentro, la sto utilizzando da qualche giorno e sono estremamente soddisfatto! Il tratto è sempre uniforme e preciso, la finestrella sull'impugnatura mostra la rotazione del meccanismo.
      Costa un po' per essere una semplice portamine, ma se si ha intenzione di "trattarla bene" è un investimento che ripaga con l'esperienza di scrittura! Consigliatissima!
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      Report
    • Thenezay LOÏC
      5.0 out of 5 stars Très bon porte mine
      Reviewed in France on December 12, 2025
      Color: Gun MetallicSize: 1 Count (Pack of 1)Verified Purchase
      J’utilise le Kurutoga Each Gun Metal depuis quelques semaines et il tient vraiment ses promesses.

      Avantages :

      Mécanisme Kurutoga qui fait tourner la mine automatiquement, donc l’écriture reste nette et uniforme.

      Design élégant et robuste en gun metal, agréable à tenir.

      Grip confortable, même pour de longues sessions d’écriture.

      Mine rétractable, pratique pour le transport.

      Inconvénients :

      Un peu plus lourd que les porte-mines classiques, peut déranger si on écrit longtemps.

      Prix un peu élevé comparé aux modèles standard, mais justifié par la qualité et la technologie.

      En résumé, c’est un porte-mines très pratique et précis, idéal pour les étudiants ou les professionnels qui écrivent beaucoup.
      Report
    • Hyde
      5.0 out of 5 stars Buen portaminas
      Reviewed in Mexico on March 4, 2026
      Color: Gun MetallicSize: 1 Count (Pack of 1)Verified Purchase
      El producto es bastante bueno pero al venir de Japón el tiempo de espera es bastante prolongado
      Report
    • EMcC
      5.0 out of 5 stars Nice to use
      Reviewed in Sweden on March 5, 2026
      Color: Gun MetallicSize: 1 Count (Pack of 1)Verified Purchase
      Well designed and functional product at a good price.
      Report
    See more reviews

    Product Summary: uni Core Keeps Sharp Mechanical Pencil, Gun Metallic (M510171P.43)

    From 三菱鉛筆

    4.7 out of 5 stars, 8,895 ratings

    Customer reviews

    50+ bought in past week

    Price

    No featured offers available

    Other sellers

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    About this Item

    • Lead Rotating Technology Mechanical Pen, Kuru Toga
    • Country Of Origin : Japan
    • For 0.5Mm Lead, Gun Metallic Body
    • Package Quantity : 1

    Product Description

    The Kuru Toga Is A Mechanical Pencil Which Core Is Kept Sharp. It Has A Kuru Toga Engine That The Core Rotates Little By Little While You Are Writing. You Can Always Write With Constant Thinness And Density.

    Options Available

    Color

    • Gun Metallic

    Size

    • 1 Count (Pack of 1)
    • 1 Count (Pack of 2)
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