OLFA® 45mm Rotary Cutter. OLFA best made cutting tools in the world.® The #1 CHOICE of Quilters and Sewers EVERYWHERE! Great for small projects, perfect for miniatures & corners! Designed for right and left handed use. Uses OLFA® RB45 tungsten steel replacement blades, sold separately. Unique & versatile. Allows you to: cut in any direction, backward or forward, straight or curved - cut many materials, cloth, leather, paper, vinyl, flim, etc.