Pentel 0.7mm (P207-C) Blue P200 Series Automatic Mechanical Drafting Pencil Refillable Lead Eraser (Pack of 3) - Walmart.com
Amazon.com: Pentel 0.3mm P200 Series Mechanical Pencil Lead with Brown Barrel : Office Products
I made 40 3D printable bodies for the Pentel P200 Sharp series Mechanical Pencils. Plastic Knurling is SURPRISINGLY GOOD. (file links and explanation in comments) : r/Design