If you're a one man trim installation team, then a casement tool can quickly become your best friend. A casement tool has both 45 and 90 degree angles with pencil holes for drawing your guidelines and also features a built-in tape measure hook. One small and inexpensive tool can help you cover almost every aspect of trim work. Casement tools make measuring, cutting and installing trim accurately simpler, even with one man; they're even handy for squaring up blades. Once you have used a casement tool, you'll never remember how you lived without it.