Wood Equipment. 177 in. (4,500 mm) Overall cutting length, 5-1/2 in. (140 mm) max. saw blade projection; 25 HP main motor w/pneumatic saw blade quick-change system. ~ 3 HP Separate scoring motor, 13.7 in. dia. - 4,500 RPM main & 7.8 in. dia. - 7,200 RPM scoring blade ..