To create my Inktober artwork, I use a mix of different tools. The most important are a colored pencil for the base sketch, fineliners to ink, and moleskine paper which doesn’t bleed through. You can find an overview of all of the tools I use for Inktober on my Amazon affiliate page.
When creating pencil sketches, my only requirement is that the pencil I use is a mechanical pencil. For the last few years I’ve been using a bunch of free pencils that I picked up at a Novotel once. I like mechancial pencils because they have a nice sharp tip!
I usually sketch in my sketchbook, which is an A4 sized moleskine sketchbook. This is my favorite type of sketchbook because the paper is nice and thick! My other art is usually drawn on sheets of A4 printer paper.