Through-hardened steel blade is precision angled to cleanly cut tall stacks. Clamp securely holds paper to prevent shifting or tearing. Permanent 1/2" grid & dual standard & metric rulers ensure proper alignment. Safety features include finger guard that protects the entire length of the blade & patented automatic blade latch that locks with every cutting motion. Torsion spring prevents blade from accidentally falling. Ergonomic soft-grip handle. Heavy 3/4" thick wood base with non-skid rubber feet provide stability. Trimmer Board Type: Bypass; Sheet Capacity: 30; Cut Length: 15"; Blade Material: Hardened Steel.