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  2. Crowns

Crowns

Diamond-Tools-Austria crowns are characterised by highly reliable drilling behaviour, even on reinforced materials.



The V nut in the foot enables a self-centering effect, thereby making it very easy to mount the crowns on the drilling pipe using brazing or laser welding.

Drilling with SP-Technology Crowns segments

RU20 thin-walled crowns

Crowns segments RU 20 from Diamond-Tools-Austria
Ø wall thickness (T) Slot width 2 Slots 4 Slots
8 2 2 •
10 2 2 •
12 2 3 •
14 2 3 •
15 2 2 •
16 2 4 •
18 2 5 •
20 2 5 •
22 2 5 •
24 2 5 •
25 2 5 •
26 2 5 •
28 2 5 •
30 2 5 •
32 2 5 •
35 2 5 •
37 2 5 •
40 2 5 •
42 2 5 •
45 2 5 •
47 2 5 •
50 2 5 •
52 2 5 •

 ∅, wall thickness (T) and slot width in mm

RU30 standard crowns

Ø wall thickness (T) slot width 2 Slots 4 Slots
8 2 2 •
10 2 2 •
12 2 3 •
14 2 3 •
15 2.5 2 •
16 2.5 4 •
18 2.5 5 •
20 2.5 5 •
22 2.5 5 •
24 2.5 5 •
25 2.5 5 •
26 2.5 5 •
28 2.5 5 •
30 2.5 5 •
32 2.5 5 •
35 3 5 •
38 3 5 •
40 3 5 •
42 3.5 5 •
52 3.5 5 •

 ∅, wall thickness (T) and slot width in mm