The replaceable faces can be changed out when worn. These mallets have a head loaded with metal shot for added weight and a controlled impact with minimal rebound. Use them to drive chisels and strike work without damaging its surface. The polyurethane rubber faces resist oils and solvents and won't crack under high impact; they're often used on plastic, wood, and sheet metal. To avoid marring when tapping or striking, choose a face that's softer than your workpiece. Lighter weight mallets are good for tapping work into place and driving a chisel to make small cuts. Use heavier weight mallets when assembling joints, dislodging stuck parts, and making aggressive cuts with a chisel. Longer mallets allow for more powerful swings. The handle has a ribbed grip for slip resistance.