For wet and dry drilling in reinforced concrete with normal and hard aggregates.

Patent-protected Space Welding technology for high-strength segment connections
Segment for fast speed work and long tool life
Up to Ø 350 mm with 1¼” UNC connection
From Ø 400 mm only available with 4 hole bayonet connector in spanner size 41 mm or 50 mm
From Ø 250 mm optionally available with 4 hole bayonet connector
Standard working length 500 mm
Special working length 430 mm

Diameter mmL mmNumber of segmentsLxWxH mm SegmentsPart no.
52500524 x 3,5 x 1031DUK500500-052
56500524 x 3,5 x 1031DUK500500-054
62500624 x 3,5 x 1031DUK500500-062
66500624 x 3,5 x 1031DUK500500-066
72500724 x 3,5 x 1031DUK500500-072
76500724 x 3,5 x 1031DUK500500-076
82500724 x 3,5 x 1031DUK500500-082
87500724 x 3,5 x 1031DUK500500-087
92500824 x 3,5 x 1031DUK500500-092
102500824 x 3,5 x 1031DUK500500-102
108500924 x 4,0 x 1031DUK500500-108
112500924 x 4,0 x 1031DUK500500-112
122500924 x 4,0 x 1031DUK500500-122
1255001024 x 4,0 x 1031DUK500500-125
1325001124 x 4,0 x 1031DUK500500-132
1425001124 x 4,0 x 1031DUK500500-142
1525001224 x 4,0 x 1031DUK500500-152
1585001224 x 4,0 x 1031DUK500500-158
1625001224 x 4,0 x 1031DUK500500-162
1725001324 x 4,0 x 1031DUK500500-172
1825001424 x 4,0 x 1031DUK500500-182
2005001424 x 4,0 x 1031DUK500500-200
2185001524 x 4,0 x 1031DUK500500-218
2205001524 x 4,0 x 1031DUK500500-220
2255001524 x 4,0 x 1031DUK500500-225
2505001624 x 4,0 x 1031DUK500500-250
2705001624 x 5,0 x 1031DUK500500-270
3005001824 x 5,0 x 1031DUK500500-300
3205001824 x 5,0 x 1031DUK500500-320
3505002024 x 5,0 x 1031DUK500500-350
4005002224 x 5,0 x 1031DU500500-400
4505002424 x 5,0 x 1031DU500500-450
5005002624 x 5,0 x 1031DU500500-500
5505002824 x 5,0 x 1031DU500500-550
6005003024 x 5,0 x 1031DU500500-600

Special lengths and diameters available on request
Indicate the actually required working length when ordering
up to Ø 400 mm welded, from Ø 400 mm brazed
Segment foot height can vary between 1 mm – 2 mm

*For dry drilling, a drill bit with fewer segments is required – available on request

dry *

wet