45° Cut: The unique 45° single-mountain cut design of the door casing cutting guide ensures precise cutting angles and is suitable for installing door frame lines, window frame lines, and decorative lines. Lightweight and Portable: The door and window casing cutting guide adopts a thickened double-layer design with a 20mm cutting pattern and a 5mm deep groove, suitable for more sizes. The overall design is lightweight, easy to carry and operate, and suitable for various decorating scenarios. Stable Insulating Material: The auxiliary door casing cutting guide adopts 8mm thickened synthetic cardboard, uses Class A electrical insulating material, the board thickness is ≥8mm, stable and reliable, and can be cut quickly. Applicable Scenario: The door casing cutting guide supports two cutting methods: direct cutting and oblique cutting. The 45° and 90° angles are precise, the cut edges are clean, the joint is seamless, the clamping length is adjustable, the base plate is secured with the backing of the aluminum saw machine, and the cut is stable (applicable to miter saws with a base length of 45.5-51.5cm). Impact prevention: The screw clamping of the door casing cutting auxiliary tool is firm, the cut is neat, wear and impact prevention, and it can withstand various pressures during the cutting process for a long time, with a long service life.