The Devilbiss Finishline 4 is a gravity-fed paint gun that’s designed to be as reliable, user-friendly and versatile as possible when it comes to painting a variety of surfaces and materials. We here at Best of Machinery have done our research, checked the details and pulled together this Devilbiss Finishline 4 flg-670 review & buyer’s guide to tell you whether it’s worth adding to your toolbox.

Key Features

The stainless steel body that makes up the bulk of this paint gun’s design is extremely easy to clean and doesn’t have any sharp edges that you could accidentally scratch your hands on so you can wipe away paint flecks and other stains with a regular wet cloth, no special tools necessary. A 500cc / 500ml paint cup is included with the gun itself, which is great for smaller painting jobs, but you can also swap it out for a larger model or design if you need to cover a larger area in a single painting session.

The Finishline 4 is a surprisingly robust and lightweight paint gun, weighing in at around 8 ounces while empty and being only ten inches long on its longest side. Without the paint cup, it’s easily half that, making it really easy to keep in a toolbox or bag if you need to use it on the move. Its design is meant to give you uniform spray coverage time and time again, getting rid of the lumpy or uneven paint finishes that you might get from other paint guns.

Thanks to the paint gun’s high-grade construction and adjustable air pressure settings, it can spray paint at a variety of different speeds and intensities without being damaged in the process. This can seem slightly fiddly at first, but it opens up a lot of different options and lets you paint a huge range of surfaces without having to switch to a different paint gun.

Pros

1. The stainless steel and anodized finish make this paint gun easy to clean.
2. The kit comes with a versatile paint cup for instant use.
3. Its durable design keeps it functional and safe during long-term use.
4. It offers consistent atomization for more consistent paint coverage and fewer drips.

Cons

1. The paint gun can seem slightly bulky with its paint cup attached.
2. You need to spend time adjusting the settings before the gun will provide perfect paint coverage.

Who is it Suitable for?

Although all its adjustment knobs might overwhelm novice painters at first, the Finishline 4 is a great tool for anybody who knows the basics about owning, maintaining and using a paint gun! As long as you’re using the gun correctly, it’ll give you an excellent paint finish on almost any surface time and time again, even if you’re using a different type of paint each time. Being able to tune it yourself and make adjustments on the fly gives it a leg up over simpler designs, and you can tailor it to take on jobs of almost any kind, whether you’re painting a small section of wall or an entire room’s worth of furniture.

Like a lot of heavy-duty DIY tools, it’s not really safe to give to children or younger teens, so make sure you treat it with the same security and care that you would a larger, more industrial piece of equipment.

Why we like it

The Devilbiss Finishline 4 flg-670 provides an odd mix of simplicity and complexity, being easy enough for first-time users to understand while still providing enough variety and functionality to be useful for professionals and long-time painters. The small body and removable paint cup mean that it’s easy to carry with you, so it can also be an excellent choice for professional painters and DIY experts that need to have all their tools with them while they travel from place to place.

Although we at Best of Machinery can’t speak for everybody individually, we definitely feel like it’s a product you should keep in mind when you find yourself in need of a new paint gun or painting tool. If you’re into DIY, or simply need a powerful tool that you can rely on, the Devilbiss Finishline might be the paint gun for you!