Stanley FATMAX SFMCF810B Impact Driver 18V Brushless, 170 Nm, 1/4" Chuck

The Stanley FATMAX SFMCF810B cordless impact driver offers up to 170 Nm of torque with a brushless motor, 1/4″ hex chuck, and integrated LED light — ideal for heavy-duty fastening, assembly, and work on metal, wood, and structures. Tool-only version, perfect if you already have compatible V20 batteries.

The Stanley FATMAX SFMCF810B is an impact driver designed to offer maximum power and portability on construction sites, workshops, and intensive DIY projects. With its brushless motor and new 18V lithium batteries from the V20 system, it ensures greater efficiency, long life, and maintenance-free operation of the motor.

The maximum torque of 170 Nm, combined with a no-load speed of up to 2,800 rpm and an impact frequency of up to 3,500 impacts/minute, allows you to tackle complex screwdriving, bolting, and fastening on hard materials such as steel, wood, or structural components. 

The 1/4″ (6.35 mm) hex chuck with a “drop-in” system allows for one-handed bit changes, making it quick and practical to use during work. The integrated LED light improves visibility in poorly lit areas, while the ergonomic soft-grip handle and compact design make it comfortable even in confined spaces. 

The “tool-only” version is perfect for those who already own V20 system batteries — it allows you to expand your tool collection without duplicating power supplies, saving on costs and space. 

Benefits for the End User

High torque (170 Nm) — suitable for bolting, heavy-duty fastening, and working on demanding materials. 

Brushless motor — greater efficiency, durability, and runtime, with minimal maintenance. 

Cordless and compact — total freedom of movement, ideal for construction sites, workshops, or mobile work. 

Simple and quick bit changes thanks to the 1/4" “drop-in” chuck, even with one hand. 

Integrated LED — improves visibility in dark environments or confined spaces. 

Compatible with V20 system — great if you already have Stanley 18V batteries, no need for new sets.

Who It Is For

Professionals, carpenters, workshops, and installers who need a powerful and portable driver for working on metal, structures, carpentry, or intensive fastening.

Advanced DIY enthusiasts and hobbyists who already own Stanley V20 batteries and want to add an impact driver to their set.

Tradespeople and maintenance workers who operate on construction sites, workshops, or areas with difficult access to electricity, and need a reliable cordless tool.

Anyone performing assembly, fastening, work on wood/metal, installations, and needing quick bit changes and versatility of use.

FAQ – Frequently Asked Questions

Is the battery included?

No — the SFMCF810B version is sold as a “tool-only,” without battery or charger. 

What batteries is it compatible with?

With all 18V FATMAX V20 system batteries from Stanley. 

What type of work does it perform best?

Heavy-duty fastening, bolting, metal fastening, structural work, carpentry, assembly on beams or profiles, work on ladders or scaffolding, quick installations.

Can I change bits with one hand?

Yes — thanks to the 1/4″ “drop-in” hex chuck, bit changes are easy and quick even with one hand. 

Is it suitable for working in dark environments or tight spaces?

Yes — the integrated LED light illuminates the work area, and its light weight and compact design make it usable even in confined spaces.