Model : Z30100X31 1.Max drilling diameter 100(mm) 2. ... are used on the main spindled box, rocker, in and our column. In this way the clamp become more credibility.4. ... rocker,having sleeve on the main spindle, quenching on the in-out column, all which prolong the life span.5. The ... motor power.6. Owing perfect protector,guard of the out column and the lubricate setting.Z30100X31 Radial Drilling Machine ...