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
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