Pentel Office Supply FAQ: Twist-Erase III, Superb Ballpoint, A4 Paper, and Marker Removal

I've been ordering office supplies for a small team for six years, and I've made some expensive, avoidable mistakes. I've ordered the wrong lead size, bought paper that didn't fit our files, and used acetone on a wood table. I've personally made and documented about twelve of those mistakes, totaling roughly $4,500 in wasted budget. This FAQ is the list I wish someone had handed me before I started.

Is the Pentel twist erase iii mechanical pencil worth it?

For everyday writing, yes. If you're looking up the Pentel twist erase iii mechanical pencil, you're probably asking about the one with the twist-up eraser under the clip. I've used it for about two years. The eraser is the main event: you twist the top, the eraser feeds out, and you don't have to chase a cap eraser across the floor.

That said, I assumed the twist eraser meant I could stop thinking about separate erasers. Didn't verify. It still runs out; it's just a bigger, more usable eraser. You need refills. Not a dealbreaker, but I wish I'd known.

My actual mistake was lead size. In 2021, I ordered two dozen Twist-Erase III pencils in 0.7mm because the listing didn't say a size. Our team uses 0.5mm. I hit confirm and immediately thought, did I just order the wrong size? Yes. Looking back, I should have checked the product details. At the time, I assumed all mechanical pencils were 0.5mm. They're not.

Is the Pentel Superb ballpoint pen actually good?

I'll be honest: I didn't expect much the first time I tried the Pentel Superb ballpoint pen. It looks like a standard office ballpoint, and I've been disappointed by those before. But the metal tip writes surprisingly smoothly, and the ink dries fast enough that I don't smear it on shipping forms. To be fair, it's not a gel pen. It won't give you a flashy, wet line. It's the pen you grab when you just need something to not skip.

It's also refillable. But 'refillable' led to my next mistake: I assumed every Pentel refill would fit. The Superb uses its own refill, not the same one as the Energel. Check the model number before you stock the drawer.

Should you buy refills or a new pen?

Refills are usually cheaper, but only if you order the right ones. I've bought lead refills that didn't fit because I grabbed 0.7mm when the pencil was 0.5mm. The package says both on the front. I just didn't read it. I've also bought a Superb refill thinking it was for the Energel because both say Pentel. They don't interchange. The five-second fix is to check the old part number before you hit order.

For the Twist-Erase III, the eraser comes as a refill too. Generic cap erasers won't fit the twist mechanism. That's not me pushing you toward the brand's accessories; it's just how the mechanism is built.

What's the deal with A4 paper?

For years I ordered US Letter and didn't think about it. Then a client asked for a PDF formatted for A4 paper, and I had to learn the difference. According to the ISO 216 standard, A4 paper is 210 × 297 millimeters, or about 8.27 × 11.69 inches. US Letter is 8.5 × 11 inches. A4 is taller and narrower, so printing one on the other gives you white bars or a clipped edge.

Here's the expensive lesson: if you're in the US, make sure your binders and filing cabinets are set up for A4 before you buy a case. I once bought A4 for a 'global-ready' office. The printer was fine. The files and folders were not. I do not miss that stack of unusable paper.

For regular printing on either size, standard copy paper is 20 lb bond, which is roughly 75 gsm. If you're writing with gel pens or fountain pens, 24 lb bond (about 90 gsm) resists bleed-through better. The gsm is usually printed on the ream label. I used to ignore it. Now I check it first.

How do you get permanent marker off wood?

If you search for how to get permanent marker off wood, the answer usually starts with isopropyl alcohol. Most permanent markers are solvent-based dyes, and alcohol dissolves the dye without damaging the finish. I say 'usually' because finishes vary. Test a hidden spot first. I should follow that advice more than I do.

My mistake was using nail polish remover because it was nearby. The marker came off, but the acetone in the nail polish remover also took off the table's finish. I might be misremembering the exact series of events, but the result was a dull spot that took another hour to fix.

Now I use a cotton cloth with 70% or 90% isopropyl alcohol, blot the mark, wipe gently, then clean with a damp paper towel. If the marker has sat for a while, give the alcohol a minute to work. If the wood is raw and unsealed, you might need to sand and refinish. But sealed wood handles alcohol fine in most cases.

Should you use an Illinois paycheck calculator before ordering supplies?

This sounds unrelated to Pentel, but stay with me. When I first started ordering, I looked at list prices and assumed that if the total was under some mental number, it was fine. I didn't think about actual cash flow. Then I got a tax-sized surprise.

If you're a freelancer or a small business owner, know your take-home pay before you commit. Last year I used an Illinois paycheck calculator to estimate net pay after state taxes and deductions. It took five minutes. It made me realize my 'budget' needed to be lower than my gross salary. Looking back, I should have done that years earlier. At the time, I thought gross equals budget. It doesn't.

Now my rule is simple: for supplies under $50 that we'll use within a month, order it. For anything bigger, I check the calculator, get a quote, and sleep on it. That rule has saved more money than any coupon code I've ever used.

Which Pentel pen should you buy for daily work?

It depends, and I know that's not the answer you wanted. For fast notes, I keep a Pentel Energel in my bag because the ink dries quickly on normal paper. But I won't promise it never smudges on glossy paper. For signing paperwork and for a pen I can loan to someone, the Pentel Superb ballpoint pen is my boring, reliable choice. For sketching or technical work, I reach for a mechanical pencil.

If you're ordering for a team, don't buy a case of anything based on one review. Order one or two of each and pass them around. That advice came from a $150 box of pens that vanished from a common drawer. I still don't know where they went. I do know we never bought them again.

What's one mistake you still make?

Testing. I know to test marker remover on a hidden spot. I know to check a pen sample before buying in bulk. But when I'm tired, I skip the test and order something that looks close enough. The last time was a box of Pentel extra-fine markers; our team needed chisel tip. It wasn't obvious until the box arrived.

So if you take anything from this, let it be: test before you invest. It sounds boring, but boring prevents the $4,500 in mistakes I've already made. I'd rather you learn from those than repeat them.