Updated 9/26/2026
It stands to reason that right when you find a tool you love everything about, the manufacturers distribute a new model.
Technology changes, we learn new things, and all of this leads to the production of a bigger, better, newer product.
But how much better? Just because one item discontinues, does that mean you need to rush out and purchase the latest and greatest?
Or, is it better to always stay at the top of the line?
We’re not here to tell you that new isn’t always better. The new lines are typically introduced because they’ve improved it.
Sometimes, they’re introduced because it’s just time to turn out a new product.
The Wen 3921 16-Inch Variable scroll saw is one such product.
Today, we will cover the differences between the Wen 3920 scroll saw model and the Wen 3921 model.
We will share with you what is new, what is better, and what you need to know about the two in comparison!
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Wen 3921 Scroll Saw Overview
Wen has been in business since 1957. They are a well-known tool company, and they produce a lot of great tools that many people jump at.
One of their more recent tool releases is the Wen 3921 scroll saw, which came out to replace the Wen 3920.
The 3920 was a popular model, but it was time for a few upgrades.
WEN 3921 Scroll Saw Features
- 16” throat size
- Speed variables between 400 – 1600 SPM
- 26 Pounds
- Measures 26.38” x 13” x 14.75”
- No tools are required for blade changes
- Storage on unit
- The blade can operate in 2 directions
- Includes a dust port, blower, and light
The most notable change to point out here is that the Wen 3921 allows you to change the blades with zero tools.
That was not an option for the 3920 and therefore is a worthy upgrade.
There may also be some other changes, but this is perhaps the selling point difference between the two models.
The Wen 3921 scrolls saw is designed with a cast iron base, which gives you a steady and re