How to choose a marker: Fine, paint, chalk and pencil
Marking is a pencil, permanent ink, paint or chalk. Pick by surface and whether the line must stay. Measure: tape. Level: spirit level.
| Tool | When | Not |
|---|---|---|
| HB pencil 24 cm | Wood, can be sharpened | Permanent marker on metal |
| Fine 1 mm ink | Card, plastic, a thin line | Chalk line indoors |
| Paint marker 2–4 mm | When the card says paint marker | A “fatter” Fine 1 mm |
| Chalk 227 g | Reel, wipe-clean indoor line | Sharpie on a carton |
SPECIALIST+ univ. pencil HB, 24 cm — graphite, 24 cm. A pencil is not a permanent marker. Sharpie Fine black — permanent, 1 mm. Sharpie Fine red — same Fine, red: colour to tell marks apart, not another thickness.
Sharpie Twin Tip — 0.5 mm and 1 mm in one body. Sharpie W10 — chisel tip, 1.5–5.5 mm on the card (description also 2 mm), Reflow up to 21 units without a cap. W10 is not Fine 1 mm.
MARKAL DURA-INK15 Fine 1 mm — permanent, 1 mm. MARKAL PRO-LINE HP white — paint marker, 2–4 mm. SPECIALIST+ marking chalk blue, 227 g — indoor reel, wipe-clean. Chalk is not a permanent Sharpie. Marking tools.
Sources: mm and type (pencil / permanent / paint / chalk) from the cited cards (19.10.2026.).








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