PROSTONE
masonry drill bit
Entry-level impact drilling – fast, good and reliable.
The Heller ProStone drills well, quickly, and reliably in stone and is especially suitable for use in cordless drills. The 4-flute spiral removes the drilling dust quickly. The stable carbide tip ensures a long service life. The ProStone has a CYL shank.
Quality drill bits for stone
Optimised for masonry
Ideal for use in cordless drills
Quick dust removal thanks to 4-fluted helix
Long service life thanks to stable carbide tip
brickwork
brick
aerated & porous concrete
natural stone
sand lime brick
percussion-drilling
CYL
18017
4mm
75mm
40mm
1
18018
5mm
95mm
50mm
1
18019
5mm
150mm
85mm
1
18020
6mm
100mm
60mm
1
18021
6mm
150mm
90mm
1
18022
6.5mm
100mm
60mm
1
18023
6.5mm
150mm
110mm
1
18024
7mm
100mm
55mm
1
18025
8mm
120mm
75mm
1
18026
8mm
200mm
135mm
1
18027
10mm
120mm
80mm
1
18028
10mm
200mm
135mm
1
18029
12mm
150mm
85mm
1
18030
12mm
220mm
150mm
1
18031
13mm
150mm
90mm
1
18032
14mm
150mm
90mm
1
18033
16mm
150mm
90mm
1
18034
18mm
160mm
100mm
1
18035
20mm
160mm
100mm
1
19279
5.5mm
95mm
50mm
1
19281
5.5mm
150mm
110mm
1
19282
7mm
150mm
85mm
1
24608
4mm
150mm
110mm
1
24611
7mm
400mm
275mm
1
24612
8mm
150mm
110mm
1
24615
9mm
120mm
80mm
1
24616
10mm
150mm
90mm
1
24618
10mm
600mm
550mm
1
24622
14mm
400mm
275mm
1
24623
14mm
600mm
500mm
1
24624
15mm
150mm
90mm
1
24625
16mm
200mm
150mm
1
24626
16mm
400mm
275mm
1
24627
16mm
600mm
500mm
1
24628
18mm
400mm
350mm
1
24629
18mm
600mm
500mm
1
24630
20mm
400mm
275mm
1
24631
20mm
600mm
500mm
1
Sets
Article Number
Diameter
Total Length
Working Length
Quantity
17744
-
-
-
4
17745
-
-
-
5
18037
-
-
-
7
Percussion-drilling in concrete, sand-lime brick, natural stone, brickwork, clinker.