The wolfcraft guide rail extension set enables smooth, perfectly straight cuts. It is compatible with the FKS 145 circular saws. Since 1949, wolf craft has been developing products for greater speed, precision, and safety in home and professional applications. With over 3,000 products, wolfcraft empowers users worldwide to achieve excellent results on the first attempt. Instructions: Can only be used in combination with Guide Rail FKS 145 for Circular Hand Saws. The set extends cutting length up to 255 cm.