IRWIN Tools STRAIT-LINE Chalk Line, Mach6 Reel, 100-Inch (1932877) The IRWIN STRAIT-LINE MACH 6 Chalk Reel features an Easy Fill Lock Top that provides a wide opening for increase speed and visibility when filling the reel or accessing internals. The top is constructed of the same impact resistant aluminum as the body and can be locked securely with a 1/4 turn to prevent unwanted spills. The 100' hi-tensile line is 2.5X stronger than traditional chalk reels for fewer breaks on rough, abrasive surfaces. The reel has a 6:1 gear ratio to rewind the line 6X faster than traditional chalk reels. The open access back panel allows for quick line change and cleaning, and the wide-prong hook provides secure anchoring. The robust steel handle and large ergonomic clutch deliver increased durability, strength, and torque, and the metal drive gear resists failure under heavy load. Features Easy Fill Lock Top - Large, 1/4-turn locking top for quick chalk fill and easy access to reel internals - Easy fill lock top 100' Hi-Tensile Line - Stronger for fewer breaks and for use on rough, abrasive surfaces - 2.5X stronger than traditional chalk reels 6:1 Gear Ratio Rewinds line 6X faster than traditional chalk reels Open Access Back Panel Allows for quick line change and cleaning Metal Drive Gear Resists gear failure under heavy load USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.