MilesCraft 8401 Trim45 Trim Carpentry Aid. Unique adjustable reveal allows you to set a reveal of your choice from 1/8 inch to 1/2 inch in 1/8 inch increments, making this the perfect trim tool for any project. Adjust the reveal just enough to cover old paint lines with new trim or set a bold reveal for heavy shadow lines. Perfect for any project from picture frames to picture windows! Accurate Measurments. Tape measure slots positioned for easy and accurate measuring. Rare earth magnets hold tape measure in place. Mount in corner by using built in nail holes to measure long distances alone. Pins allow you to measure finish trim length without fumbling with the tape measure on an awkward corner. 45 degree head - Quickly mark cuts. 90 degree design - Easily square saw blades and more.