The BaBylissPRO Boost+ SkeletonFX Black Matte Trimmer (FX7870RBPE) is a professional outlining trimmer in a matte black finish. A fully exposed DLC T-blade, adjustable to zero-gap, gives the 360-degree visibility you need for crisp lines, edges and detail, and because it is DLC it cuts smoothly with less friction. A high-torque brushless motor holds a consistent blade speed through longer, thicker hair. It runs corded or cordless on a lithium-ion battery -- up to 3 hours of runtime from a 4-hour fast charge -- in a heavy-duty all-metal body with a diamond-textured rubber handle.

Why the SkeletonFX Black Matte trimmer

This is the detail tool of the black set -- the trimmer that sets the lines, cleans the edges and outlines the beard once the clipper has taken the bulk down. The T-blade is fully exposed, so you can see exactly where the edge lands and steer it right up to a hard line, and it adjusts to zero-gap for the closest, cleanest finish. Because the blade is DLC, it glides with less friction as it works. The high-torque brushless motor keeps the blade speed steady even when you push into thicker hair, and the heavy all-metal body with its diamond-textured handle sits balanced in the hand for the fine, controlled moves that outlining asks for.

Key features

• Fully exposed DLC T-blade: a precision-engineered Diamond-Like Carbon T-blade with 360-degree visibility, adjustable to zero-gap, that cuts smoothly with less friction for crisp lines and edges.
• High-torque brushless motor: a long-life motor that holds a consistent, fast blade speed even through longer, thicker hair.
• Corded or cordless lithium-ion: up to 3 hours of runtime from a 4-hour fast charge, with sustained power even at lower charge levels; work plugged in or free.
• Heavy-duty all-metal body: a robust metal housing in matte black, coated with a diamond-textured rubber handle for comfort and control.
• Zero-gap outlining: the exposed T-blade adjusts down to zero-gap for hard lines, edge-ups and detail on thicker hair and less sensitive skin.

What to expect

This is an outlining and detailing trimmer, not a bulk tool -- it sets lines, edges and beard detail; it does not remove length across the head. Use the BlackFX clipper for bulk, tapers and fades, then switch to the trimmer for the crisp work; finish the neck, cheeks and hairline with the FoilFX02 shaver. The exposed DLC blade earns its smoother, lower-friction cut from the coating, not from any promise of a specific result. It carries its own lithium-ion battery, separate from the clipper and shaver, so the batteries are not interchangeable. Keep the blade oiled and it will hold its edge and stay crisp cut after cut.

Who it is for

• Barbers and stylists who want an exposed-blade outlining trimmer in a matte black finish.
• Lines and detail: the exposed DLC T-blade steers up to a hard line and adjusts to zero-gap for the closest edge.
• Beard and edge work: the 360-degree visibility and balanced metal body give control for fine, precise moves.
• Advanced home users who want genuine professional outlining performance.

Who it is not for

• If you need to remove bulk or length: a trimmer outlines and details -- use the BlackFX clipper for bulk, tapers and fades.
• If you want a foil-close finish: add the FoilFX02 shaver for the neck, cheeks and hairline.
• If you expect a shared battery: the trimmer carries its own lithium-ion pack and does not share power with the clipper or shaver.

Professional tip

Lead with the corner of the blade on the line -- turn the trimmer so one corner of the exposed T-blade rides your guideline, and let that corner cut the edge while the rest of the blade stays clear, which is what keeps the line sharp and straight. Work in short, controlled strokes with the blade at zero-gap, and check the line from both sides before you commit.

How to use

1. Charge the trimmer fully before the first use, or run it corded.
2. Bulk the hair down first with the clipper; the trimmer sets the detail.
3. Outline the hairline and beard, leading with the corner of the exposed blade.
4. Adjust to zero-gap for the closest, hardest lines.
5. Oil the blade after each use and brush it clean.
6. Store the trimmer with the blade guard on, ready for the next detail.

Care and maintenance

Oil the blade before and after each use -- a drop along the teeth, run the trimmer briefly, then wipe the excess -- and brush the cut hair from the exposed blade after every client. Keep the trimmer dry and store it with the blade guard on. When the blade dulls, fit a fresh original exposed DLC T-blade; for the exact replacement blade for this trimmer, plus guards, blade covers and oil, see the BaBylissPRO accessories and replacement parts page.

In short

• Exposed DLC outlining trimmer: 360-degree visibility, zero-gap adjustable, smoother lower-friction cutting for lines, edges and detail.
• Corded or cordless: up to 3 hours of runtime from a 4-hour charge, with sustained power at lower levels.
• Heavy matte-black metal body: the outlining trimmer of the Boost+ Black set.

Frequently asked questions