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OLFA Hobby Knife & Rotary Cutter Guide

Hello everyone! It’s that time again for another showcase! Tutorial? Something like that. Anyhow, today we are looking at the Small Cutter A Plus and the Hobby Rotary Cutter by OFLA.

Small Cutter A

So let’s start off by looking at the Small Cutter A.

Flipping the box over, we are given instructions on general use. More or less, that is what I’ll be covering, so here is a quick overview.

The Tool

Opening the box, we see, for a “small” cutter, but it isn’t that small, about 6 inches or so.

On the back, we have a clip, for clipping it onto your pocket or work belt.

I don’t have either, so I clipped it to some card stock.

How to Use It

Pretty standard for a hobby knife like this. Just press down on the black tab and push it out. On that note, here is the knife fully extended.

A quick demonstration of it cutting some masking tape.

As you can see by this arrow.

And BOOM, a nice clean cut!

And for nub removal, It works really well.

Here is before and after nub removal:


The knife also has segmented sections so that if it chips or starts to dull, you can just pop it off. (NOTE: I WILL NOT BE BREAKING THIS BLADE RIGHT NOW.)

Speaking of the blade wearing out — if you want to keep the handle and just swap the blade, here is how you swap it out.

Pinch the yellow tabs at the base.

Then pull the base off.

The rest then just falls out.


Overall, I really love this hobby knife, but one thing that I can’t really figure out how to show is that this knife feels really great. Like it has an excellent comfortable grip to it. I highly recommend it. It is honestly really nice.

Hobby Rotary Blade

Next, let’s take a look at the rotary blade.

Just like the last one, on the back, we have general instructions on how to use this product.

As for the knife, here it is. While it is small-looking, it is pretty long.

How to Use It

To use the knife, just pull down on this tab here. The word open is also written on said tab.

And boom! Open.

Now for the test on some hobby tape.

A typical straight edge cut.

But wait…something is different. Look closely at this one cut here.

That is right! The cut is curved!


This circular cut can be beneficial on, say, circular or rounded parts. Instead of having a bunch of straight edges, you can have curves to end things off.


On the back of the box, it shows various heads you can swap out, which implies that the blade is removable. So for general product care, let’s look at that.

Start by pushing down the black tab on the back.

Then the blade falls out.

Then remove the blade from the holder.

Note: Please be careful about removing the blade. You can cut yourself on these if not handled correctly.

And so there we have the Rotary Cutter. On a side note, I’ve been using the Rotary Cutter non stop for personal projects. I’m just in love with this tool!

Overall, I love these products. The small hobby knife is a fun a nifty tool. As I said earlier, it has a very excellent grip to it, as someone who primarily used Exacto knives in the past. I welcome this change.

As for the Rotary Cutter. Well, I love it! This is such a cool thing, and I’m kicking myself for not picking up one earlier. The number times this could have helped during the days of Gundam 00. I’m like, WOW. If I had to choose one, just one for you to pick up, I’d say go with the rotary cutter if you are doing custom work. If you aren’t, then stick with the small hobby knife.

I hope this article is helpful to you in looking at new tools. Thanks for stopping by.

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