Featuring the Extreme Bold Snap line, the extra heavy-duty chalk box holds twice the amount of chalk compared to the Extra Bold snap line. It is ideal for field jobs where continuous snapping is required.
- 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
- 50ft or 100ft