Reverse finishing process rotary valve
hole. The use of micro precision
adjustable boring head make the reverse
boring cutter precision adjustment.The
design of the eccentric cutter arbor in
the rotary table can not spin to state
from the front under the cutting tool
back pull finishing rotary valve bearing
hole, not only can ensure good
dimensional accuracy and higher
guarantees two bearing gear
concentricity. The cutting tool bar
material by vacuum heat treatment with
higher strength and hardness,assure
stability and life of cutting tools!