Battery Operated Eraser for BIG Mistakes

Staedtler Battery Operated Eraser Package

The Staedtler Battery Operated Eraser

Sometimes when I see something in the office supplies section of a website or store, I can’t really think of a real “office” setting where it would be used, and thats the case for this Staedtler Battery Operated Eraser that I came across and couldn’t resist buying to try out.  This is probably more suited for an artist or possibly an engineer or avid cross-word puzzler, but lets take a look at it anyway.

Holding on to the Staedtler Battery Operated Eraser

Holding on to the Staedtler Battery Operated Eraser

This battery operated eraser is fairly light weight and fits comfortably and easily into your hand.  As you can see from the package above, it comes with 11 extra “latex free” erasers in addition to the one pre-loaded one.  You can also pick up a pack of 30 Staedtler replacement erasers once you burn through the set originally provided.  On the side, right next to the tip of the index finger pictured above, there is a button that activates the eraser.  The tip of the eraser rotates in a smooth circular motion, but only while you press on the button, as it does not lock in a permanent ‘on’ position.  The two (not included) AAA batteries are also small enough to keep this light weight and comfortable to use.

Staedtler Battery Operated Eraser Components

Staedtler Battery Operated Eraser Components

Replacing the eraser is fairly simple, you just grab the edge of the metal clamp that is already sticking out from the end of the eraser body and pull, it slides out very easily.  Once you have it out, you can either adjust the current eraser to make it longer or shorter, or completely replace it with a new one if it is now too short.

Staedtler Eraser Lengths

Staedtler Eraser Lengths

One thing that I found a little funny was the lack of quality control in the length of the extra erasers provided.  The dotted line in the photo above represents the shortest eraser, and the solid black lines to the right represent the ends of each individual eraser.  Now I’m not going to complain over what s probably about 1/2″ of total eraser length, but I just find it a bit odd that a company would be so inconsistent with this.  For me, the consumer buying a few of these occasionally, its only a few pennies, but for someone mass-producing a product like this, I’d think that the cost of some longer erasers could end up impacting the overall financial success of the product.  Anyway, on to the actual product performance, which I was quite impressed with.

Video of the Battery Operated Eraser in Action

The video above shows the battery operated eraser in action, very easily erasing what I made sure was a heavy and solid patch of .3mm B lead.  The eraser wipes the entire swatch of lead clean in a matter of seconds, with significantly less effort than if I had used a regular eraser.

Eraser Sample

Eraser Sample from Video

The next photo is a close up of the dark patch of lead that was erased in the preceding video.  There is also a sample that shows the eraser cutting through a box of progressively darkening lead so you can click on that to get a better view of exactly how well the eraser removed the lead.

For the most part I think this Staedtler battery operated eraser does an excellent job of quickly and easily erasing lead without ruining paper.  I do however think its probably a bit of overkill for most people.  As I said in the introduction, this is probably best for artists, crossword puzzlers, and maybe architects or engineers.  I guess it would be good for standardized test takers too, but I’m not up on all the rules of what is allowed for certain tests, so you may not be able to take this in with you.  Oh, and one last thing…because sometimes I’m more like a 4 year old child rather than a grown adult, I found it pretty funny that when you leave too much of the eraser hanging out, this is what happens:

©2015, Brian Greene. All rights reserved.

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  1. 1
    memm says:

    I always wondered who could use these. There is (or was) an even bigger version available.

    The video is really funny :)

  2. 2
    Sharon says:

    I have an electric eraser from my days at being an architect. When you are asked/told to make huge changes to a drawing, these are a must. Especially if the drawing was done in ink. Your arm would fall off before you erased an inch of line using a regular eraser.
    I think the inconsistent lengths are probably because they just chop up their larger erasers.

  3. 3
    Bret says:

    Brilliant! But for serious electric erasing power, how about this mean machine:

    4500 rpm! Hate to say it, but if you need that kind of power, you’re probably doing it wrong.

  4. 4
    Tom says:

    If one may consider purchasing the electric eraser a BIG mistake, do you need an eraser with MORE POWER? That last video of the eraser like a propeller cracked me up. I can just imagine having that in 4th grade. The whole class is quietly taking a test and you rev up the electric eraser for every mistake. ha!

  5. 5
    Chris tedesco says:

    These are quite popular in music libraries because rental parts area supposed to be clean when returned and they charge absurd fees I’d you don’t. In reality though, they are never completely erased when you get them in the first place :)

  6. 6
    ThirdeYe says:

    Thanks for the review, I was always curious how electric/automatic erasers worked. I laughed out loud at the 2nd video. Classic. :)

  7. 7

    @memm – Hope this review and some of the comments helped answer that question. :)

    @Sharon – Thanks for sharing your feedback and letting us know how/when you used this. I assumed it had to be something like that, so its nice to have confirmation. I guess I see what you are saying about the eraser lengths, I just assumed it would be easy enough and more cost effective to have them all the same length.

    @Bret – Yeah, I saw similar ones, thats a lot of mistake fixin’ power there.

    @Tod – I can see kids getting kicked out of their 4th grade classes now. Glad I didnt know about this back then or I would have been one of the kids getting kicked out.

    @Chris tedesco – Thanks for sharing that, thats a use I never would have thought of.

    @ThirdYe – No problem, glad you enjoyed it. :)

  8. 8
    Jessie says:

    I used those all the time in college in my hand drafting classes for scene design. A must when you are working with a project that one stray line left on the paper can equate to a random piece getting built wrong. Also saves your hands when you have to cut/rework pieces of the drafting

  9. 9

    @Jessie – That totally makes sense, I love hearing how people actually use these, thanks for sharing!

  10. 10
    jgodsey says:

    actually i found it pretty useless overall. like all battery operated erasers you can’t apply any torque, the motor won’t take it. so you can only erase lightly inscribed pencil. As for using it for more than a half a minute to a minute, it creates heat and friction which causes the stubby eraser inserts to melt and you will blow through a lot of them. the thing is designed to sell cartridges.

    the only persons i could see using it more than once and not hurling it across the room are folks who have hand and gripping issues where it is easier to hang on to than a traditional eraser or pencil.

  11. 11

    @jgodsey – I totally see what you are saying, however I think that anyone who has one of these on hand is probably going to tread lightly with their pencil in the early stages of what they are doing so they wont have to apply much torque or be very aggressive with it.

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