Deep hole drilling.
The 200HP deep hole drilling system provides a drilling range of
from .500" to 1.000" diameter and up to 36" deep
(effective stroke). Designed for automotive steering rack drilling the
200HP can produce more than 250,000 in 5,400 working hours, a
penetration rate of 10" per minute. The system is enhanced by
automatic loading, transfer and unloading. A unique secondary process
utilizes a twist drill to drill a 90 degree lubrication hole in four
parts simultaneously, intersecting with the 23.74" deep hole; a
post-drilling inspection provides continuous gaging to assure that the
two holes intersect.