Categories
Chalk Lines
A chalk line snaps a long straight run onto a surface in seconds and remains the fastest way to mark out tiling, formwork, partitions and roofing. This page covers how string thickness changes the line, what the reel ratio means, and how to pick a powder. The catalogue holds Milwaukee products.
Milwaukee Bold Line Chalk Line and Boya Set Red Colour
Milwaukee · Chalk Lines
Milwaukee Bold Line Chalk Line and Boya Set Blue Colour
Milwaukee · Chalk Lines
Milwaukee Fine Chalk Line and Boya Set Blue Colour
Milwaukee · Chalk Lines
Milwaukee 30 M Reel Chalk Line
Milwaukee · Chalk Lines
Milwaukee 35 M Reel Chalk Line
Milwaukee · Chalk Lines
String, reel and powder
A fine string snaps a narrow, crisp line and is the choice for tiling, stone and precise cutting. A bold string carries more powder and leaves a line readable from a distance on rough concrete, sheathing and outdoor work. After thickness, what decides a crisp line is tension — a slack string leaves a double mark.
The reel ratio states how fast the string rewinds; 3:1 and above wind 30-35 metres back quickly. On powder, permanence is the deciding factor: standard chalk wipes off easily and suits interiors, while permanent and outdoor powders survive rain and wind but can stain some surfaces.
- Fine string: tiling, stone, precise cutting lines.
- Bold string: concrete, sheathing, lines read from a distance.
- 3:1 or faster reel: quick rewind over 30-35 m.
- Permanent powder: outdoors; standard powder: interiors, wipes off.
Frequently Asked Questions
Why is my line doubling?
Either the string is not tight enough or it was pulled sideways when snapped. Fix both ends, lift the string straight up and release; a slack string touches the surface twice.
Fine or bold string?
Fine gives a crisp line for tiling, stone and precise cutting. Bold carries more powder and stays readable at a distance on concrete, sheathing and outdoor work.
Which powder should I use?
Standard chalk is enough indoors and wipes off easily. Outdoor and long-lasting lines call for permanent powder, though it can leave a mark on some surfaces.
Does a laser replace a chalk line?
They do different jobs. A laser projects a line but leaves nothing behind; a chalk line puts the line physically on the surface, where it stays after the tool is packed away. Most crews use both.