Pentel 0.7mm (P207) Blue P200 Series Automatic Mechanical Draughting Pencil Refillable Lead Eraser P207-C (Pack Of 6)

Been using these (in black) in 0.5 and 0.7 for maybe 35 years, reliable, nice weight, nice in the hand, I tend to eventually lose them. Coloured option is useful to differentiate lead sizes, or for novelty, or just because whatever, but more expensive, not sure why. The bar code sticker and its adhesive gum on each pencil is somewhat frustrating to remove.

I have used these for over 25 years

As an engineer, I can say that Pentel has mastered the mechanical pencil with this design. I have been using them since the early 1990's. They don't wear out. They rarely break. I keep buying more because they are often borrowed, and then I don't get them back.

Robust and works well. I don’t like the kids using it because of its wicked point

I have been using these high quality mechanical pencils for decades and they appear to be made the same as always. Highly recommended!