What is included in the IRWIN chalk line kit?

The IRWIN Aluminium Chalk Line Kit includes a heavy-duty aluminium alloy chalk line reel with 30 metres of twisted cotton line plus 113g of blue chalk. The reel holds approximately 55g of chalk at a time. The steel-plated hook and large grip anchor ring provide secure holding on edges and corners.

Can I use the IRWIN aluminium chalk line as a plumb bob?

Yes, the IRWIN Aluminium Chalk Line has a retractable self-locking metal handle that allows the reel to be used as a plumb bob. The aluminium body provides enough weight for a steady drop. This dual function makes it a practical two-in-one tool for basic site layout work.

Why does this chalk line use cotton line instead of nylon?

Twisted cotton line holds significantly more chalk than synthetic alternatives, delivering more visible marks and more strikes per chalk fill. The IRWIN chalk line uses cotton for this reason, giving multiple line strikes from each pull. Cotton also snaps straighter than nylon for cleaner reference lines on most surfaces.

What colour chalk should I use for marking out?

Blue chalk, supplied with this IRWIN kit, is the standard choice for temporary marking on most building surfaces. It washes off with rain or cleaning. Red chalk is semi-permanent and harder to remove, best for layout lines that need to last. White chalk shows up on dark materials like asphalt and dark timber.

How do I refill chalk in the IRWIN chalk line reel?

The IRWIN chalk line reel has a fill opening that accepts standard chalk powder bottles. Pour chalk into the opening until the reel is approximately three-quarters full, leaving room for the chalk to coat the line evenly. Overfilling reduces chalk distribution and can cause clumping inside the reel.

STL10507683

Aluminium 30m Chalk Line & Blue Chalk Pack

Brand IRWIN Part No. STL10507683

The STL10507683 Irwin Strait-Line Chalk Line Kit comprises a chalk line and 113g blue chalk.

The Irwin Chalk Line has a heavy-duty case which is constructed of durable aluminium alloy. It has a steel plated hook and large grip anchor ring which provide better holding power. Its retractable self-locking metal handle allows reel to be used as a plumb bob.
Its twisted cotton line holds more chalk for multiple line strikes.

Holds approximately 55g of chalk.
Line length: 30m.

The STL10507683 Irwin Strait-Line Chalk Line Kit comprises a chalk line and 113g blue chalk.

The Irwin Chalk Line has a heavy-duty case which is constructed of durable aluminium alloy. It has a steel plated hook and large grip anchor ring which provide better holding power. Its retractable self-locking metal handle allows reel to be used as a plumb bob.
Its twisted cotton line holds more chalk for multiple line strikes.

Holds approximately 55g of chalk.
Line length: 30m.

Aluminium 30m Chalk Line & Blue Chalk Pack

Name: Aluminium 30m Chalk Line & Blue Chalk Pack
Brand: IRWIN
SKU: STL10507683
Price: 20.56 GBP
Availability: OutOfStock

Authorised Dealer

£17.13 ex VAT

£20.56 inc VAT

Estimated delivery 2-3 working days from order

Not sure? Call us on 01843 210459

Full Manufacturer Warranty

Warranty Full manufacturer warranty

Coverage Manufacturing defects. Normal wear parts excluded.

How to claim Bring to Canterbury or Ramsgate, or contact us for collection.

Support 01843 210459

We're an authorised IRWIN dealer — all warranty claims go directly through the manufacturer.

Aluminium 30m Chalk Line & Blue Chalk Pack

£20.56 inc VAT £17.13 ex VAT

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