Cutting system
T-blade outliners
A straight cutter mounted crosswise and set wider than the body behind it, with a square corner at either end. Nothing about it floats, nothing about it forgives, and that is the point: it exists to put a line exactly where you place it and to leave that line visible.
Cross-section, not to scale
The mechanism
How it cuts
- A fixed toothed blade sits under a moving one, and hair is sheared between them where the teeth cross.
- The blade extends past the housing on both sides, so the corner can reach into a place the body of the appliance cannot follow.
- It is normally set close to the skin, with the edge itself deciding the result rather than any comb or cap.
- The working motion is a single deliberate stroke along the line you have already decided on.
What follows for a face
Consequences
- A border you can see from across a room
- A straight exposed edge leaves a hard boundary, which is the one thing every other system on this site is arranged to avoid producing by accident.
- A sideburn and the front of a hairline
- The corner works into the angle between the ear and the head, which a rounded cap cannot enter at all.
- Anything on a curve
- The blade is straight and the jaw is not. Laid flat on a curve, only part of the edge is in contact, and the part that is in contact is doing all of the cutting.
- A hand that is in a hurry
- An exposed corner is a corner. It takes a notch out of a line in the time it takes to change your mind, and a notch is grown back rather than corrected.
Keeping it working
- Alignment is the whole appliance. A blade that has shifted in its seat cuts to a different depth at one end than at the other.
- The teeth are the part that dulls, and the maker names the replacement set in the documentation rather than leaving it to guesswork.
- Oil where the documentation says to oil and nowhere else, and wipe the excess before it collects dust.
Common errors
Drawing the line too low
A neckline set below the natural one has to be maintained at that height for as long as the beard exists, and it climbs a little every time.
Mark the line you actually want with a finger first, then cut once and stop.
Using the corner as a scraper
The exposed end digs a notch into the border it was supposed to define, in a single unplanned stroke.
Lead with the flat of the blade and let the corner touch only where a corner is needed.
Fixing one side by cutting the other
Both sides climb together, one correction at a time, until the beard has quietly moved up the face.
Stop, leave it for a week, and take the difference back when there is hair to take it from.
Cautions
- StopTwo things mean stopping rather than taking one more pass. Skin that is broken, raised, sore or already inflamed, which is a doctor’s call and not something to draw a blade across. And a line so far out of true that a shorter setting only chases it, which is a barber’s. Neither of them improves by carrying on.
- StopA shaver or a trimmer belongs to one person. Shaving injures skin at a scale too small to notice, and whatever sits on the blade goes into that injury.
- StopA corded appliance is a mains-powered appliance. It does not go into the shower, into a filled basin, or under a running tap, whatever a listing says about rinsing anything else.
Where to look next
- Beard Trimmers
Where the outliners sit, including one that runs from mains power and never goes near water.
- Sideburns and temples
The pair of lines this system exists for, and the reason they are cut looking straight ahead.
- Neckline
The line that most often ends up in the wrong place, and the arithmetic of putting it back.
- Single-blade hybrids
A softer way to define an edge, on an appliance that also does the shaving.