The MARSHALLTOWN zinc joint marking groover is an high quality professional tool for working cement and concrete floors. 

• Made from high quality long wearing zinc, harder than bronze
• Finely finished to cut sharp clean grooves
• Shaped to eliminate concrete-catching corners
• Dimensionally very consistent
• Smooth finish allows for easier clean-up
• Resilient DuraSoft® handle provides a soft feel, reduces fatigue, and offers excellent durability
• Bit Size: 1/4" radius, 3/8" width, 1/2" depth