Canela PSC modular boring bars, sizes PSC32 to PSC63, in dimple lock, wedge clamp, double lock, lever lock and center screw clamping. The polygonal shank coupling (ISO 26623-1) clamps from inside, so a bar changes in seconds and repeats to the micron. Every page gives the minimum bore, bar diameter, centre height, rake and inclination angles, insert size, spare parts and tightening torque.