Creating bold chalk lines on the work site is a breeze when you've got this 100' Precision Line Chalk Reel (48-22-3990) Milwaukee. It's designed with braided lines for increased strength and a sharper line, and also boasts reinforced reel housing for additional durability. It's also equipped with a planetary gear system distributes forces evenly over three gears, putting less stress on internal components to prolong life. Plus, the flush folding handle prevents the handles of the reels from moving when not in use or during storage.