




⚡ Cut smarter, not harder—360° precision in your hands!
The WEN Electric Fiber Cement and Siding Shear (Model 3670) is a lightweight, OSHA-compliant power tool designed for professional-grade cutting of fiber cement, Hardie board, and similar materials up to 1/2 inch thick. Featuring a pressure-sensitive trigger with variable speed up to 2500 strokes per minute and a fully swiveling 360-degree head, it offers unmatched versatility and precision. Equipped with durable reversible steel blades capable of cutting up to 20,000 linear feet, this shear ensures long-lasting performance backed by a two-year warranty.
| ASIN | B0C6N75QRH |
| Batteries Required? | No |
| Best Sellers Rank | #23,482 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #15 in Power Shears |
| Blade Material | Alloy Steel |
| Brand | WEN |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (3,169) |
| Date First Available | May 30, 2023 |
| Finish | Brushed |
| Finish Type | Brushed |
| Global Trade Identification Number | 00044459036708 |
| Hand Orientation | Ambidextrous |
| Handle Material | Alloy Steel |
| Included Components | Electric Fiber Cement and Siding Shear |
| Item Package Quantity | 1 |
| Item Weight | 4.7 pounds |
| Item model number | 3670 |
| Manufacturer | WEN |
| Material | Steel |
| Number of Items | 1 |
| Package Dimensions | 14.65 x 11.3 x 3.86 inches |
| Part Number | 3670 |
| Point Style | Fiber Cement Shear |
| Power Source | ac |
| Style | Corded Fiber Cement Shear |
| UPC | 044459036708 |
| Unit Count | 1.0 Count |
N**Y
Did the job, great for smaller projects, Very very low Dusting
Basically they did what they were supposed to do. they cut around 12 boards for me 1/4in thick Hardie fiber cement siding, very very little dust. made the cuts fairly clean. Best thing is there was no dust. I would recommend for smaller projects for siding, patch work or small installs. If you have to do an entire home...then no. But fact is the dust from fiber cement siding is NO GOOD for you. These keep the dust to a point that if you cut outside you wont need a mask..but I would wear 1 anyways. The only thing I would say is as you cut the siding that its snipping off tends to roll up and it blocks the line you drew to cut on becuz there is nothing to make it curl off the the side like a small guide you may see on more expensive fiber board sheers. this is a little annoying but can be worked around, for the price Its great. I plan of just making a small part to guide the shavings out of my way and attach to the sheers. But they did the work and were very cost effective
G**O
These thing works !!
Bought this to fix a mistake (bought to long) with some ridged galvanized roofing sheet metal. I figured for the price of this. It was cheaper than returning the metal and wasting diesel fuel. I decided to test this thing out against some of the comments of negativity. I drew a straight line on the metal with a marker. It DOES cut straight!! However if YOU the operator can't push straight. You're not going to get a straight cut. It will cut over a single ridge. This is where the swivel head comes in handy. Just rotate it 45 degs so you can push down and forward while cutting the ridge. However it will not cut thru a double ridge. Which I kinda knew it wouldn't. So I carried a grinder w/ a cut off wheel. I had 10ft of over lapped at the double ridge sheet metal to cut. Took me about 5-10 minutes. Most of that was moving the ladder and switching out the shear for a grinder. These electric shears are well worth it vs some aviator shears. If you have some detailed cuts to make. Test it out on some scrap metal 1st. So you know how hard you have to push and how much tension to apply to the trigger.
D**Y
Simple and cheap way to cut fiber cement lap siding
This makes cutting James Hardie siding extremely easy. I have used it to rip a starter piece, cut a notch, and of course for cutting my planks to size. It is relatively easy to use and so far the cuts have been straight. Time will tell how long the blade lasts but so far it is working great. I especially like it is not as messy and noisy as using a saw blade. For the price, it is great and recommend. It was cheaper than buying a 10" blade for my mitre saw but I did still need a blade for my table saw to do the Hardie trim which is too thick for the shear tool.
A**A
Tools
Good quality . Functions well .
M**A
Buy it.
These were a life saver; so glad I bought this. Feels like a steal for the price. It is smooth cutting and so easy to just get it chomping on the line and be done.
R**M
Nice, heavy duty tool at a great price
This is an excellent tool. I bought it to cut steel roofing, which has ridges and is fairly thick. Needed something to follow my guideline as well as handle the ridges ok. After reading other reviews I decided to try it. Very nice results. This tool was significantly cheaper than the same version sold by Harbor Freight. And it shipped quickly and efficiently and was in my hands the next day. Since I live in small town west Florida, that’s unusual. I pulled it out of the box, read the brief directions and put it to work. 45 minutes and 8 nice straight cuts later, I came inside to cool off, drink some cold water and share my experience. I’m about to put metal siding on my shop. This will be perfect.
S**.
Very Impressed!
After fighting nibblers to cut aluminum I finally gave up and bought these shears. I only wished I would have bought them wayyy sooner. These shears made fast work of cutting some aircraft grade aluminum - literally like a hot knife through butter. They seem to be well made, and although I won’t be using them often, I do expect they would hold up well in a fairly abusive environment. Great tool!
R**W
too slow
Robust tool. Returned because its just too slow to be productive and takes quite a bit of force to push thru material. Put a room fan behind me to direct dust and used a circular saw with fiber cement blade. Also found my jigsaw with carbide blade worked well.
D**3
This shear did not work with Hardie cement board. Maybe it was just the shear I received, dunno. It was very difficult to get a refund from the vendor & I had to involve the Amazon A-Z customer service people.
M**T
Comme premier projet, j'ai découpé une tôle de piscine de 50 pi en quatre longueurs pour doubler un bac de jardinage. Le travail est précis et rapide, ne laissant pas de bord coupant ni de barbes dangereuses à manipuler. Il crée un ruban en spirale de 1/4 po qui devient une perte, mais à part cet inconvénient, il coupe tout ce que je peux couper avec de bonnes cisailles, mais tellement plus rapidement, en éliminant presque tout danger de se couper. La première impression est excellente.
M**N
Buena herramienta para uso casero y profesional de baja intensidad.
K**N
Great price and looks heavy duty however has US pin plug so have to purchase an adapter for AUS power plug
C**N
I bought this for a project and I think I'm in love. This is a very nice quality set of metal shears. It makes nice clean cuts and saves a ton of time plus my forearm. You need these, I promise. The only downfall is it has a cord but I can't justify hundreds of dollars extra for a tool that'll get used occasionally
Trustpilot
1 month ago
2 months ago