Page 167 - Demo

165PRE-THREAD DRILLING WITH CHAMFERING %u00bd%u0009Chamfering RingISCAR%u2019s chamfering rings designated RING DCM%u2026 are additional elements that turn the CHAM-DRILL line drills to combined tools for drilling and countersinking. The chamfering rings are easily assembled on the CHAM-DRILL line drills, creating an efficient and rigid tool. ISCAR%u2019s chamfering rings increase the versatility of CHAM-DRILLline drills and save time spent on small chamfering and deburring operations.The ring carries an indexable insert designated XOGX %u2026 for chamfering with an angle of 45%u00b0 and recommended depth of up to 2 mm. ISCAR%u2019s chamfering rings, RING DCM%u2026, assembled on CHAM-DRILL line drills with a diameter range of 10 to 20 mm. The protrusion of the drill inserted into the chamfering ring can be adjusted for various drilling depths in blind and through hole (table 3.4.1).