With the Bahco CL-1221 chalk line reel, you can accurately snap straight reference lines across distances of up to 30 m. The durable nylon and cotton blend cord features a 16 kg breaking strain and ensures excellent chalk retention for crisp, visible layout marks on concrete slabs, drywall framing, or timber structures. Thanks to the 3X fast-rewind gearing, you reel the line back in three times faster than standard models, cutting downtime and reducing wrist fatigue on busy job sites. The housing holds up to 50 g of chalk powder and doubles as a plumb bob for vertical alignment checks, while the integrated belt clip keeps it conveniently within reach.