The BaBylissPRO FXONE All-Metal Black Skeleton Trimmer (FX799MBE) is the line-and-detail tool of the FXONE system -- an all-metal, cordless skeleton trimmer built for outlines, edges and beard detail. A long-life high-torque digital motor turns at 7,200 RPM for 1,137,600 cutting actions a minute, driving a fully exposed, 360-degree, zero-gap Blue Titanium and DLC T-blade. It runs on the same interchangeable FXONE Li-ion battery as the black clipper and shaver, so one charged cell carries across your whole FXONE bench.

In the box

• The FXONE All-Metal Black Skeleton Trimmer (FX799MBE) with its exposed Blue Titanium and DLC T-blade
• One interchangeable FXONE Li-ion battery
• Dual-voltage universal charging base
• Zero-gap adjustment tool and blade guard
• Cleaning brush and blade oil

Why the FXONE skeleton trimmer works for detail

Where the clipper takes the weight off, the skeleton trimmer sets the lines -- and this one is built around an exposed blade. The Blue Titanium and DLC T-blade sits fully exposed and 360-degree, so you can see exactly where the edge lands and carve a crisp outline, a clean cheek line or a defined beard edge. It comes zero-gap out of the box for the closest, sharpest lines, the included tool lets you reset the zero-gap as the blade beds in, and the Blue Titanium is designed to run at a lower blade temperature. The high-torque digital motor holds 7,200 RPM through coarse hair, and the slim all-metal barbell grip keeps the tool balanced for the fine, controlled moves that outlining needs. Because the FXONE battery snaps out and runs the clipper and shaver too, the trimmer is one step in a system that grows with you -- add the other tools and every one shares the same batteries and dual-voltage bases, so you never buy the power twice.

Key features

• Long-life high-torque digital motor -- 7,200 RPM, 1,137,600 cutting actions per minute
• Fully exposed 360-degree zero-gap T-blade in Blue Titanium and DLC, 40 mm wide, 1.6 mm
• Blue Titanium designed for a lower blade temperature; zero-gap out of the box with a reset tool
• Interchangeable FXONE Li-ion battery -- shared with the FXONE clipper and shaver
• Up to 3h runtime, 2h charge, 4-stage LED ring, quick-release battery
• Cordless only, dual-voltage universal base, 100-240V; improved all-metal knurled grip, magnetic hair-pocket cover, hidden hook

What to expect in the hand

It is slim and metal, weighted toward control rather than bulk, so it sits between the fingers for the fine work. The exposed T-blade gives you a clear sightline onto the edge, and the zero-gap setting means the blade meets the skin for the sharpest line without a safety gap in the way. There is no taper lever and no combs -- this is a dry-line detail tool, not a bulk cutter. The FXONE battery ties it to the rest of your bench: pull the cell from the clipper, snap it into the trimmer, and keep working. The all-metal body takes daily wear without loosening, and the matched black finish still looks the part months in.

Who it is for

• Barbers who want a dedicated outlining and detail trimmer
• Pros on the FXONE system who want one battery across their tools
• Anyone who works crisp lines, cheek edges and beard detail
• Mobile barbers who need cordless freedom on worldwide voltage

Who it is not for

• Barbers who need to take bulk off -- that is the FXONE clipper's job
• Anyone who wants guide combs and a taper lever -- the trimmer has neither
• Anyone who prefers each tool on its own separate battery -- see the Boost+ line

Professional tip

Lead the outline with the corner of the exposed blade and keep the open blade flat along the line so the edge stays sharp without digging in. Reset the zero-gap with the included tool whenever the line starts to feel less crisp, and keep a charged FXONE battery ready so a fade session never stops on a flat cell.

How to use it

1. Snap in a charged FXONE battery and check the blade is zero-gapped
2. Lead each line with the corner of the exposed T-blade
3. Work the outline, cheek lines and beard edges in short, controlled moves
4. Reset the zero-gap with the included tool as the blade beds in
5. Brush the blade out, add a drop of oil, and seat the tool on its base

Care and maintenance

Brush the hair out of the exposed blade after every client and keep it lightly oiled so it runs cool and smooth. The FXONE battery snaps out for charging or to drop a fresh one in. When the blade wears, the matching Blue Titanium and DLC replacement T-blade (FX707BL) and other spares are on the BaBylissPRO accessories and spares page. To section the hair cleanly while you work, add the BaBylissPRO Croco Clips X6.

In short

• All-metal black FXONE skeleton trimmer, 7,200 RPM / 1,137,600 actions per minute
• Fully exposed 360-degree zero-gap Blue Titanium and DLC T-blade, 40 mm, 1.6 mm
• Interchangeable FXONE battery shared with the clipper and shaver
• Up to 3h runtime, cordless, dual-voltage base 100-240V
• Lines, edges and beard detail -- the outline in the FXONE system

Frequently asked questions