Logan 201 Oval & Circle Mat Cutter - A steady hand and this product� s exclusive three-step stepping mechanism ensures a clean, smooth bevel on any mat. The Logan 201 is designed to cut bevelled ovals from 3-1/4" x 4-3/4" to 20" x 23". It will also cut beveled circles from 4-1/4" to 20" in diameter. The stepping mechanism allows the blade to gradually and precisely enter the mat in three stages and produce professional quality bevels. The radial plate and blade depth are both adjustable. Fast and portable, it includes a sturdy cutter base, practice matboard and extra blades. Replacement blades are available separately.