Wood Base Guillotine Trimmer 12 Sheets Wood Base 12"X12" - X-ACTO® hardened steel blade slices through paper quickly and easily. - Perpetual Edge Self-Sharpening System™ keeps blade sharp. - Composite wood base and blade-lock safety latch. - Safety guard keeps blade away from fingers. - English and metric grids. - Trimmer Board Type: Guillotine Sheet Capacity: 10 Cut Length: 12" Blade Material: Hardened Steel.