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For over a century, innovation has been the hallmark of IRWIN TOOLS. Beginning in 1885, with the development of the first IRWIN Auger Bit, and progressing with the introduction of VISE-GRIP Locking Tools, SPEEDBOR Flat Bits, MARATHON Saw Blades, and QUICK-GRIP Bar Clamps, IRWIN has been at the forefront of the industry, creating superior tools for the professional tradesman.
IRWIN STRAIT-LINE Replacement Line 100', Polyester
Reliable Replacement Line for Less Downtime
The IRWIN STRAIT-LINE Replacement Line extends the life of your IRWIN STRAIT-LINE Classic and Speedline Chalk Reels* with a strong line that resists breaking and fraying.
*Chalk Reels sold separately.
- Includes new anchor hook
- Compact and easy-to-use
- Polyester fiber for durability
Make Your Mark
Replacement line that's fast, strong and easy-to-use.
Abrasion-Resistant
IRWIN STRAIT-LINE Classic and Speedline Chalk Reel Polyester Line refill is designed for long-life even on abrasive surfaces.
Up to 6 Strikes per Pull
Durable Polyester Lines in IRWIN STRAIT-LINE Classic and Speed-Line Chalk Reels withstand up to 6 strikes per pull.
Includes New Anchor Hook
The IRWIN STRAIT-LINE Replacement Line includes a sturdy anchor hook for secure marking.
Durable Construction
IRWIN STRAIT-LINE Chalk Reels are crafted for the wear and tear of every jobsite.
Mark Mclaughlin
Reviewed in the United States on March 22, 2025
Just what was needed
Bohart
Reviewed in the United States on August 24, 2021
Works fine
John C. Betka
Reviewed in the United States on April 23, 2021
This line has proven to be useless, too light weight and breaks constantly, does not hold the chalk, so why is it called a chalk line?
Kerry Jackson
Reviewed in the United States on June 12, 2020
This is the string made for a chalk box. Holds chalk well for several lines.
Wendy Annie
Reviewed in the United States on April 30, 2020
Got this to fix my Dad's and it works perfectly!
Arbs
Reviewed in the United States on December 6, 2019
Excellent replacement line
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