STRAIT-LINE® MACH6™ Aluminum Chalk Reel w/ Red Chalk

Product Overview

The IRWIN® STRAIT-LINE® MACH6™ Aluminum Chalk Reel features an easy fill and lock top for fast, clean refills and a lightning fast 6:1 planetary gear ratio for rewinding 6X faster than traditional chalk line reels* for fewer breaks. This design features a nested hook dock for compact storage without unwanted hook snagging with the ability to quickly hook and go with gloves on. The 100 ft. hi-tensile line, robust steel handle, and large center hub deliver increased durability, strength, and torque, and the durable aluminum housing provides impact resistance. The new spool design reduces line jamming, knotting, and fraying for reel longetivity.

Additional Features

  • New spool design to reduce line damage and aerate chalk
  • Wide-prong hook for secure anchoring
  • Robust steel handle and large cneter hub for increased durability, strength and torque
  • Durable aluminum housing for impact resistance
  • Slim design for improved grip and comfort
  • Large 1/4 turn locking top for quick chalk fill and increased visiblity
  • Open access back panel allows for quick line change and cleaning
  • Fishing reel style knob for a comfortable rewind


  • Framing
  • Carpentry
  • Drywall
  • Builder Remodeler
  • Woodworking


  • (1) Red Chalk



  • Lifetime Limited Warranty

We’re confident of the quality of our products, and we’ll repair, without charge, any defects due to faulty materials or workmanship within the specified warranty.


We take extensive measures to ensure all our products are made to the very highest standards but on the rare occasion that you need our help & support, we've got you covered. Just get in touch.



  • *Compared to traditional chalk reels with a 1:1 gear ratio