ETA 19/0665 v03 of 22/01/2020 page 9 of 18
Table B7: Parameters of drilling and setting tools for hammer drilling with Hilti hollow drill bit (HDB)
Element
Drill
(no cleaning required)
Installation
Rebar
Hammer drilling,
hollow drill bit
1)
(HDB)
Brush
HIT-RB
Air nozzle
HIT-DL
Extension for
air nozzle
Piston plug
HIT-SZ
Extension
for piston
plug
Maximum
embedment
depth
2)
-
Size
d
0
[mm]
Size
Size
[-]
Size
[-]
l
b,max
[mm]
ϕ 8
12
No cleaning required
12
HIT-VL
9/1,0
400
ϕ 10
12
12
400
14
14
HIT-VL
11/1.0
400
ϕ 12
14
14
400
16
16
1000
ϕ 14
18
18
1000
ϕ 16
20
20
HIT-VL
16/0,7
and/or
HIT-VL 16
1000
ϕ 18
22
22
1000
ϕ 20
25
25
1000
ϕ 22
28
28
1000
ϕ 24
32
32
1000
ϕ 25
32
32
1000
1)
To
be used in combination with Hilti vacuum cleaner with suction volume ≥ 57 l/s.
2)
Assemble extension HIT-VL 16/0,7 with coupler HIT-VL K for deeper drill holes.
Annex B5
of ETA N° 19/0665
Intended Use
Parameters of drilling and setting tools for hammer drilling
with hollow drill bit