- State-of-the-art design allows precise adjustments for every pitch from 3/12 To 25/12 - For use with 2x10 pr 2x12 board - Provides perfectly level work surface - Can be adjusted while in use. - Adjust one degree at a time, one side at a time - Powder coated in anti-corrosion paint - Adjustable mechanism is zinc plated to prevent corrosion and rusting