Aketsubaki has detailed the mechanical-pencil hardware at the center of a five-year development project, with a new internal mechanism designed to reduce writing noise and threaded mounting intended to give the pencil a more solid feel.
The Japanese maker works with wood, lacquer and other decorative barrel materials. Its October 19 technical account makes the case for spending just as much effort on what sits inside them. The new hardware is due to make its in-person debut at the maker’s Tokyo exhibition in November.

A quieter mechanism, screwed into place
Aketsubaki says it pursued near-zero noise from the pencil’s internal mechanism while writing, working with an overseas company on some components it could not develop itself. The mechanism screws into internal brass parts, a construction the maker says is intended to give writing a more pencil-like feel.
The supporting brass tube receives stress-relief annealing before precision machining. Aketsubaki’s stated aim is a straight, dimensionally stable structure beneath the decorative barrel. That is a useful distinction: the wood or lacquer is what you see, but the hidden structure helps determine how the instrument behaves in your hand.
The maker also describes a very thin machined stainless-steel knock cover, a stainless top piece designed around quietness and low weight, and an eraser with a cleaning pin.
The metalwork gets its own attention
The shared fittings include a stainless nose, ring and short clip bearing Aketsubaki’s flower-like mark. The clip’s shape is intended to keep it out of the way of writing fingers and reduce contact that could damage a wooden barrel.
Aketsubaki describes machining precision at the 0.01 mm scale, including the opening in the nose, to limit clearance and movement. That is the maker’s precision claim; it does not establish an independently measured tolerance or prove that the finished pencil has no movement.

There is also a service detail worth watching: Aketsubaki says it can exchange the pencil and ballpoint mechanisms when the instrument is returned to the maker. For someone choosing a particular piece of wood or lacquer work, that offers a way to change the writing format while keeping the barrel. It is a workshop service, not a promised user-swappable mechanism.
Color-treated stainless fittings are another direction under development. The maker discusses structural color as a future goal; the announcement does not establish a current range of colored replacement parts for sale.
Where to see it
The Tokyo exhibition runs November 21–23 at Vision Center Ichigaya, rooms 202 and 203. Aketsubaki plans 132 reserved places across the three days, in 45-minute slots for six visitors.
- Admission booking opens
- October 21 at 9 p.m. Japan time
- Booking destination
- Official TIGET reservation page; admission is listed at ¥0
- Limit
- One slot per person across the entire event; TIGET registration required
- Booking closes
- November 11 at 11 a.m. Japan time, or earlier when a slot fills
These reservations secure exhibition admission, not a pencil preorder. The maker has not yet specified the new pencil’s price, lead diameter, weight or general release date in this announcement. U.S. availability is also unconfirmed.