James Hardie Score and Snap Knife is a simple yet effective hand tool that is perfect for accurate straight cuts on all James Hardie cement boards up to 12mm thick.  It is designed with contractors and home owners in mind. 

It’s thick, sturdy handle, and a long-lasting blade with tungsten carbide tips produces a V-cut so that upward pressure on the board allows you to easily snap it along the cut.

Each blade is braised to a rigid steel shank, to form a unique cutting edge that will score almost anything