Table 2.
Recommended drilling mode:
Drill bit diameter,
mm
68-82
The working
Equipment
shaft rotation
power, kW.
frequency, rpm
900-1300
Maximum drilling
depth, mm
0,8-1,5
19
After pre-drilling to a depth
of 5 mm, proceed as fol-
lows:
1. Remove the center drill
(B) from the adapter (C).
2. Continue drilling with the
diamond drill (А) in the reg-
ular drilling mode (without
perforation) slightly tilting
the drill by 1 to 5 degrees
from its vertical axis.
Linear speed,
m/s.
50
3,0-5,5