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Staedtler 925 25 20 2.0mm leadholder

Wow, this is just a beautiful leadholder.

Made by Staedtler Japan, it has a number of interesting features, not least of which is a push button advance. The 2.0mm lead advances by clicking the cap. It functions just like a regular mechanical pencil, but with 2.0mm lead. Very nice.

It has a cylindrical sleeve, a [...]

Soft lead pencils

Using pencils for writing, note taking, flowcharts, and diagrams, I’ve rarely explored their softest grades, those beyond 4B.
Though pencil making details are trade secrets, it is known that graphite and clay are the main ingredients in a pencil’s lead. There are also waxes and binding agents in pencils. At least one pencil has [...]

Staedtler Mars Lumograph 100 pencil

The Staedtler Mars Lumograph 100 is an icon of a pencil. When a movie depicts an artist sketching, often as not it’s the familiar blue Mars Lumograph 100 the actor is holding.
It’s also a marketing success. It’s sold in art supply stores, it’s sold at Staples, and it’s sold at the last independent [...]