ROTHENBERGER DURAMANT PRO Universal Drill Bits Space welding wet and dry drill bits Ø 10 - 500 mm Application Areas • Wet drill bits for drilling in reinforced-concrete asphalt, as well • as natural and artificial stone from Ø 10 - 500 mm • Dry drill bits for drilling in masonry, lime sand brick, poroton • and other light building materials from Ø 32 -500 mm Key Features • Enables wet and dry use • Extremely easy cutting, safe cut in hand-operated use • Faster drilling progress and longer service life • Suitable for all other ROTHENBERGER drilling machines • Balanced rotation reduces wear • Standard lengths 400 mm with R 1/ 2" and 500 mm with • 1.1/ 4" UNC • Conventional R 1/ 2" and 1.1/ 4" UNC threaded adaptors Technical Data • Drill bit Segment Segment dimensions ( L x W x H) • Ø 10 - 38 mm 1 16 x 3.0 x 7.0 mm • Ø 40 - 48 mm 1 - 4 24 x 3.0 x 9.0 mm • Ø 50 - 55 mm 5 - 6 24 x 3.5 x 9.0 mm • Ø 56 - 72 mm 6 - 7 24 x 3.5 x 9.0 mm • Ø 75 - 102 mm 7 - 9 24 x 3.5 x 9.0 mm • Ø 107 - 142 mm 9 - 11 24 x 4.0 x 9.0 mm • Ø 142 - 182 mm 11 - 14 24 x 4.0 x 9.0 mm • Ø 182 - 250 mm 14 - 16 24 x 4.0 x 9.0 mm • Ø 300 - 500 mm 16 - 28 20 x 5.0 x 9.0 mm PDC drill bit