The right flooring nailer can significantly define the quality of your work and how efficiently you carry out your project. The Numax 3-in-1 promises to address both efficiency and quality while offering other benefits. It is a portable, pneumatic tool that will help you drive both nails and staples when fastening new tongue and groove hardwood flooring.
We went to work, testing all parameters to see if the product delivered as promised. Read on for our Numax 3-In-1 Flooring Nailer review, get our verdict, and decide whether this tool is worth your consideration.
Numax 3 in 1 Flooring Stapler/Nailer SFL618 in a nutshell
The Numax 3-in-1 Flooring Nailer has several great features:
- It is compatible with both T and L-cleats and staples, hence the 3-in-1 name
- An extended handle with a rubber grip for safety
- It uses air pressure for power
- High capacity magazine, holding up to 120-floor fasteners
- Comes with a built-in air filter and anti-dust cap
- Has non-marking padding on the plates
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Numax 3-in-1 Flooring Nailer SFL618 Features
Six key features make the Numax SFL618 stand out from other staplers and nailers on the market:

Multiple Types of Compatible Fasteners
This nailer can be used with both T-cleats and L-cleats, as well as staples. It uses a 15.5 gauge for 1-2 inch long staples and a 16 gauge for 1.5-2 inch long cleats. Should you decide to go for a tighter fit and protection against humidity, such as when installing engineered flooring, the cleats option comes in handy.
Staples, on the other hand, offer affordability, faster installation, and work well with hardwood flooring. Instead of having to pick a different tool for every floor, the Numax 3-in-1 serves all situations.
Related Reading: BOSTITCH F33PT 33-Degree Paper Tape Framing Nailer
Interchangeable Base Plates
The SFL618 Nailer from Numax comes with two interchangeable base plates, a ½ inch plate, and a ¾ inch base plate. These two options mean you can drill through solid hardwood to a range of depths between ½ and ¾ inch. The base plates are made of a non-marking composite material that protects the floor from scratches during nailing.
Large Magazine Capacity
The Numax 3-in-1 nailer and stapler comes with several upgrades designed to improve work speed and efficiency. The magazine, for example, comes with a capacity of 90 to 120 staples or cleats. The large capacity saves on reloading time, a key consideration for large projects.
The magazine comes with a case that enables the smooth feeding of fasteners. In the case of jams, the semi-quick release feature provides easier access to the drive blade, making clearing jams fast and straightforward.
Related reading: NuMax SFR2190 Framing Nailer
Designed for Comfort
This high quality tool is made for working long hours without suffering fatigue. It is considerably lightweight, making moving around while carrying it a breeze. It also features a longer handle than most products on the market, and comes padded with rubber for a firmer, more comfortable grip.
The extra length increases the distance from the surface where the fasteners are being set, reducing the need for bending over and thus reducing back aches from prolonged use. The curved design, like the rubber mallet, also offers more control and grip.
The comfort-focused design, along with its smooth working mechanism, allows you to go on longer floor installation shifts without pain. This feature is a must for people with multiple or large flooring projects.
Durable Construction
The 3-in-1 NuMax SFL618 pneumatic is designed to last a long time. The body is made of die-cast aluminum and the blade is made using heat-treated steel. These materials ensure that it can handle heavy-duty work and numerous uses over the years without breaking down.
It also comes with a built-in air filter and dust cap that protect the inner sections from dust and debris, maintaining peak performance. Occasional users will pick the nailer back up after months or years and find it still in perfect condition. The manufacturer backs up the quality and durability of the product with a 1-year warranty and a 30-day warranty for wearables.

Air Powered
Unlike manual flooring staplers, which require physical exertion, the Numax 3-in-1 uses compressed air to power the piston. The compressed air ejects the cleats and staples with enough power to attach the boards together. This action leaves a cleaner surface and makes the work efficient, speeding up the process, and using less physical energy.
Related reading: Freeman PFL618BR Pneumatic Flooring Nail Gun
Numax 3-in-1 Sfl618 Dimensions and Accessories
The Numax SFL618 pneumatic stapler and nailer measures 3.5 x 16.7 x 22.8 inches and weighs 15.7 pounds, makings it lightweight and portable. The extended handle makes up much of the height.
The tool is limited to 15.5 and 16 gauge staples and cleats respectively, so those using an 18 gauge on thicker floors need to look somewhere else. Being a pneumatic drill, you will need pressure ranging from 70 to 110 PSI to power it.
The NuMax SFL618 also comes with several accessories. These include a non-making rubber mallet, which helps in firing the nailer and moving the floor into place without damaging the surface.
Other accessories include wrenches, air tool oil, and a couple of staples and cleats that help you test out the tool and start you on your project.
Our Summary of the Numax Sfl618
Pros
- It offers the option of working with three kinds of floor fasteners
- The interchangeable base plates allow for use with a wide range of floor thicknesses
- It is cost-effective in the long run when compared to renting
- Can withstand heavy and frequent use without damage
- Has a long lifespan
- Delivers professional-quality even for DIYers
- Enables fast working
Cons
- Offers only two interchangeable base, while some close competitors have three
- The rubber mallet handle is a bit delicate
Numax SFL618 Consumer Ratings and Reviews
Numax 3-in-1 reviews on online retail platforms are generally positive, with over 78% giving it five out of five stars, with an average rating of 4.5 stars.
The most highly-rated features include value for money, ease of use, and ergonomics. Its cost-effectiveness, when compared with renting more expensive nailers, has received the most praise. Its reliability and smooth performance were also highlighted by consumers.
Most of the reviews from local and international buyers are positive, including mentions such as “Fantastic wood flooring nailer!” “Worked Great! Great value!” and “First-time installer. Installed 360 sf 3/4 inch hickory flooring, never jammed once!”
There were a couple of niggling issues raised, but they did not seem to be shared across several users. Only two points seemed to affect more than one user.
First, some users would prefer some form of warning or sign when the magazine is close to or completely empty.
Second, several people felt the rubber mallet handle made it too soft, creating the risk of blisters.
Related reading: Porter-Cable FR350B Framing Nailer
Pricing of Numax Flooring Nailer
The Numax pneumatic hardwood flooring nailer is affordably priced compared to products with similar features. With no maintenance needed during storage and operation, there is little added cost, keeping the overall costs low and affordable.
Considering that you realistically get three tools in one and the manufacturer has not compromised on quality, you get the best value product in this segment of the market, which explains why it is a bestseller.
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Who Should Use the Numax 3-in-1 Flooring Nailer?
The Numax SFL618 is constructed to be friendly to the user with no learning curve needed. The package comes with both a user guide and user manual to help you with the setup. Therefore, it can be used by anyone, while at the same time, its high performance and reliability mean professionals can also use it.
Besides flooring, the tool can come in handy when roofing and siding, as long as the material you are working with can be attached by staples and cleats.
To know about other types of nail guns and their use read this article.
Numax 3-in-1 Flooring Nailer Sfl618 Review Conclusion
In my research for the Numax 3-In-1 Flooring Nail Gun Review, I find it performs way above average in all critical metrics, which are ease of use, quality of performance, durability, and safety.
Its versatile nature in terms of functionality and compatibility means you do not have to get different tools for every home improvement job. Whether looking for the first tool or an extra nailer, whether you are doing professional work or DIY, the Numax delivers expected results.
The value it offers for its price and the long lifespan earn it top ratings in numerous reviews. I would recommend it to anyone seeking quality and reliability.
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