Westcott Rotary Paper Trimmer with Titanium Bonded Blades, 12" Features NO-TOUCH SAFETY SHIELD blade cartridge Trimmer blades feature titanium bonded to a stainless steel core, for a surface that is sharper, more durable and 3 x harder than steel alone Precisely cuts up to 10 sheets of 20 lb paper Integrated carrying handle for ease of portability Includes a straight-edge cutting blade It has clear easy-to-read imperial and metric measuring grids a see-through storage compartment for extra blades and supplies The blades are titanium bonded making them more durable and 3 by harder than stainless steel alone and a scrap tray that keeps work surfaces neat This unit also has rubber-feet to prevent it from slipping and an integrated carrying handle for ease of portability No-Touch Safety Shield for quick and easy blade changesremove and change the blade without touching it. Alignment grid with English and metric rulers.