Favourites are listed first. Prices are without shipping and may include bulk offers.
Gel pens
Rotring 600 Ballpoint Pen (25.32€) with Ohto Flash Dry Gel refill 0.5mm (2.10€) (Parker G2 format = ISO 12757-1 G2). Full metal. In my opinion, this is the best gel pen you can get and assemble without custom tweaks.
Sharpie S-GEL 0.7mm (1.42€). Smoothest pen I know. Bit too thick, but the 0.5mm which is not available in Germany is pretty scratchy unfortunately.
Pentel BLN75-AO EnerGel 0.5mm (1.23€). Best value for money gel pen that you can easily buy. Unfortunately its refill doesn’t fit into the Rotring 600.
Pentel BLN665 Hexreform 0.5mm (20.99€) with Pentel LRN5 refill. Nice all metal hexagonal case, take-off cap can be posted.
Zebra Sarasa Clip Gel Pen 0.5mm Vintage Color Cassis Black (1.90€). Smooth writing, nice clip and nice click. Note that the ink color is burgundy!
Pilot Precise V5 0.5mm (0.95€)
Pilot G-Tec C4 Gel Micro 0.4mm (2.57€). Very thin.
Schneider Gelion 0.7mm (1.99€)
MUJI Gel Ink Ballpoint Pen (1.95€). Used this one all the time during university, but they changed the design and I don’t like it so much anymore. Better inks are available today.
Ballpoint pens
Uni Jetstream EDGE black 0.28mm (13.90€). Super thin writing, yet smooth. Lower half is metal; great design.
Schneider Slider Rave XB (3.20€). Mix of gel and regular ballpoint ink. Quite thick lines. Very easy to find in Germany.
Ohto NBP-507R Promecha Needle Point 0.7mm (6.34€). Full metal. Doesn’t fit Ohto gel refills unfortunately.
(As listed above, I put a gel refill into my Rotring 600. The default ink is an atrocity.)
Brush pens
Pentel SESP15-AX Brush Sign Pen (2.73€)
Pencils
Rotring 600 Mechanical Pencil 0.5mm (15.96€). Full metal.
Pentel EnerGize PL75-AO 0.5mm (4.03€). Retractable tip. Thicker than most drafting pencils, and has a rubber grip.
Pilot Super Grip H-185-SL-B 0.5mm (1.77€). Retractable tip and cheap, perfect on the go.
Pentel Fiesta AX105 0.5mm (1.29€). Super cheap, yet robust enough.
Pentel P205 0.5mm (7.07€ with 12 pencil leads)
LAMY Bleistift tipo AL (Model 139 Blue) 0.7mm (11.90€)
MUJI Rubber Mechanical Pencil 0.5mm (3.20€)
Fountain Pens
LAMY AL-star Silver (25€). Daily driver during school time.
Jinhao 992 (3.60€)
Wing Sung 3010 (2€)