Longridges Signature Plus mount cutting system features a parallelogram with calibrated marking scales. These speed up marking out mount cuts & are indispensable for repeat size projects. The blade technology is superior & used surgical quality British steel, rolled, not stamped out, to prevent scuffing. This provides a sharper edge & longer blade life. Dry blades, unlike oiled blades, also eliminate smears on the bevel edge Signature Plus system comes in electric blue & can accommodate a maximum length of board cut of 865mm & a maximum window size with bevel edge cut of 765mm Ready to use straight out of the box, the set contains a guide rail with mount stop & cutter stop, graduated two tone base with squaring facility, 90 degree vertical cutter, 45 degree bevel cutter, marker gauge, 5 4h pencils, 50 Longridge blades, 2 Sprint Mats, a burnishing bone, a instruction DVD, a tape measure & screwdriver.