This premium tube cutting jig is used to hold tubing or rods up to 1/8" diameter while making perfectly straight cuts. For best results, use a jeweler's saw with a three to four inch throat and blades that are appropriately sized for the thickness of the tube you will be cutting. It is recommended that you prop this jig against a bench pin in order to achieve a steady and straight cut. Offers both 90 degree and 45 degree angle slots for cutting. The graduated scale on the side of this jig is convenient for measuring the distance between cuts to get the correct length of tube every time. The scale ranges from 0-30 mm. Overall height measures 5".