Dahle 442 Premium Rotary Trimmer

30 Sheet Cutting Capacity - 20" Cutting Length - 4" Height x 15.1" Width x 28" Length - Self-sharpening Blade, Dual Cylinder Guide Bar, Automatic Clamp, Sturdy, Metal Base, Ground Blade, Screened Guide, Adjustable Alignment Guide - Steel, Aluminum, Plastic - Blue - 1 / Carton. Self-sharpening blade hones itself as you cut for lasting performance. Automatic clamp gently compresses your work to prevent shifting.