This photo shows drafting and clutch pencils. The drafting pencils are on the right. They come in .03, .05, .07 and .09 mm sizes (the size of the hole at the tip). They’re filled with sticks …
3D Printed Mechanical Pencil Bodies That Fit P20X and GraphGear
Mechanical Drafting Pencil - Print in Place -With Custom Name
Staedtler Drafting Pencil 3D Model $19 - .fbx .obj .max - Free3D
Lydia
Architectural Drafting for Interior Design: Bundle Book + Studio