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 mm | L mm | Number of segments | LxWxH mm Segments | Part no. |
| 52 | 500 | 5 | 24 x 3,5 x 10 | 31DUK500500-052 |
| 56 | 500 | 5 | 24 x 3,5 x 10 | 31DUK500500-054 |
| 62 | 500 | 6 | 24 x 3,5 x 10 | 31DUK500500-062 |
| 66 | 500 | 6 | 24 x 3,5 x 10 | 31DUK500500-066 |
| 72 | 500 | 7 | 24 x 3,5 x 10 | 31DUK500500-072 |
| 76 | 500 | 7 | 24 x 3,5 x 10 | 31DUK500500-076 |
| 82 | 500 | 7 | 24 x 3,5 x 10 | 31DUK500500-082 |
| 87 | 500 | 7 | 24 x 3,5 x 10 | 31DUK500500-087 |
| 92 | 500 | 8 | 24 x 3,5 x 10 | 31DUK500500-092 |
| 102 | 500 | 8 | 24 x 3,5 x 10 | 31DUK500500-102 |
| 108 | 500 | 9 | 24 x 4,0 x 10 | 31DUK500500-108 |
| 112 | 500 | 9 | 24 x 4,0 x 10 | 31DUK500500-112 |
| 122 | 500 | 9 | 24 x 4,0 x 10 | 31DUK500500-122 |
| 125 | 500 | 10 | 24 x 4,0 x 10 | 31DUK500500-125 |
| 132 | 500 | 11 | 24 x 4,0 x 10 | 31DUK500500-132 |
| 142 | 500 | 11 | 24 x 4,0 x 10 | 31DUK500500-142 |
| 152 | 500 | 12 | 24 x 4,0 x 10 | 31DUK500500-152 |
| 158 | 500 | 12 | 24 x 4,0 x 10 | 31DUK500500-158 |
| 162 | 500 | 12 | 24 x 4,0 x 10 | 31DUK500500-162 |
| 172 | 500 | 13 | 24 x 4,0 x 10 | 31DUK500500-172 |
| 182 | 500 | 14 | 24 x 4,0 x 10 | 31DUK500500-182 |
| 200 | 500 | 14 | 24 x 4,0 x 10 | 31DUK500500-200 |
| 218 | 500 | 15 | 24 x 4,0 x 10 | 31DUK500500-218 |
| 220 | 500 | 15 | 24 x 4,0 x 10 | 31DUK500500-220 |
| 225 | 500 | 15 | 24 x 4,0 x 10 | 31DUK500500-225 |
| 250 | 500 | 16 | 24 x 4,0 x 10 | 31DUK500500-250 |
| 270 | 500 | 16 | 24 x 5,0 x 10 | 31DUK500500-270 |
| 300 | 500 | 18 | 24 x 5,0 x 10 | 31DUK500500-300 |
| 320 | 500 | 18 | 24 x 5,0 x 10 | 31DUK500500-320 |
| 350 | 500 | 20 | 24 x 5,0 x 10 | 31DUK500500-350 |
| 400 | 500 | 22 | 24 x 5,0 x 10 | 31DU500500-400 |
| 450 | 500 | 24 | 24 x 5,0 x 10 | 31DU500500-450 |
| 500 | 500 | 26 | 24 x 5,0 x 10 | 31DU500500-500 |
| 550 | 500 | 28 | 24 x 5,0 x 10 | 31DU500500-550 |
| 600 | 500 | 30 | 24 x 5,0 x 10 | 31DU500500-600 |
/ 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