External Spring Solid Brass Mechanical Pencil, 100% Metal
Stumbled upon this while browsing the Reddit MP sub (LINK). Curious design. While I like the idea of the exposed spring, I’m kind of thinking there should be a clear or translucent bellows cowling to keep debris from getting underneath the spring.
But if Yosef provides some specialized springs, they could be of different tensions to accommodate preferences. Spoke Design is doing that with their Spoke Clicky Pen coming out soon. You get 3 springs with different tensions.