The "breakage protection mechanism" operates effectively only when the tip does not extend from the end.
Body size 14.6 x 10.7 x 143 mm / weight 12 g.
The ability to write beautiful letters is considered important as a function of a pencil, especially for middle and high school students who use pencils daily for learning purposes.
The mechanism that rotates the tip twice as fast allows you to continue writing beautiful letters without changing the darkness or thickness.
The automatic tip rotation mechanism "Kurutoga Engine" of the "Kurutoga Standard Model" uses a 40-tooth gear, so the tip rotates once every 40 writes. The automatic tip rotation mechanism of the "Advance" is equipped with a "W Speed Engine" that uses a 20-tooth gear that rotates twice as fast, so the tip rotates once every 20 writes. By changing the gear of this automatic mechanism, it is now possible to continue drawing lines that are approximately 12% finer with HB and about 17% finer with 2B.
The precisely machined surfaces reduce tip vibration, which is unique to Kurutoga, providing a stable writing feel.
The automatic tip rotation mechanism rotates the tip every time you write, so the gear moves up and down each time the tip's edge leaves the paper. By making it the ferrule, one of the parts of the tip, a precisely machined metal piece, the vibration is suppressed and the writing feel is stable.
The breakage protection mechanism makes it difficult to break the tip, allowing you to focus. The rolling tube, which allows you to write without extending the tip from the tip tube, prevents tip breakage during writing.
