Extra heavy-duty chalk box.

With new Extreme Bold Snap Line™ which holds double amount of chalk comparing to Extra Bold Snap Line™ is suitable for fieldsworks which require continuous snaps. New canister fill cap enables felt replacements.

  • Premium braided snap line creates Extreme Bold 0.07 in ( 1.8 mm ) lines
  • Holds 2x more chalk than the Extra Bold Snap Line marking tools
  • Heavy-duty aluminum case integrated with non-slip grip surface
  • Large refill port also allows for convenient felt replacement
  • Double-speed winding mechanism
Item Code UPC
CR503S 0.07 in ( 1.8 mm ) x 100 ft ( 30 m ) FAST WIND SYSTEM 0-49296-05775-6