Diamond Core Bits Dosis Drill Core Bit Wet Dry 18 – 350 MM GW 11/4 UNC. The description of this item has been automatically translated. Diamond core bit 1 ¼ – dry and wet. At the Wet -Drilling suitable for. Concrete, reinforced concrete (up to 12 mm reinforcement), exposed aggregate concrete, old concrete, fireclay, masonry, bricks, clinker, sand-lime bricks, general. At the Dry -Drilling suitable for. Masonry, bricks, sand-lime brick, screed, concrete. Attention: If you choose an extractor, it fits up to Ø 132mm. Diameter selectable: 18 – 350 mm. 400 mm nominal – varies from 382 to 400 mm. 10 mm for Great Wall, ZigZag – Roof and Roof Life segments. 8 mm for Block Lila. Drill bit holder: 1¼ UNC. Professional Great Wall segment – from 50 mm diameter up to 200 mm with starting notches! The core bits under 50 mm and over 220 mm have a block segment. Quality Great Wall Red – Standard segment with medium feed and good service life suitable for reinforced concrete! We recommend this segment up to 12 mm reinforcement. Please note that with strong reinforcement increased wear occurs!!! Quality ZigZag Yellow – professional segment with fast feed and long service life suitable for concrete with strong reinforcement! 25 mm and more no problem! Only available in 83 mm, 102 mm, 112 mm and 162 mm! Quality roof segments Speed?? Blue – professional segment with very fast feed and longer service life suitable for concrete with strong reinforcement! Quality roof segments Life Green – professional segment with fast feed and long service life suitable for concrete with strong reinforcement! Quality block segment (only 8 mm segment height) Purple – professional segment with medium feed and extremely long service life, suitable for concrete with strong reinforcement! Diamond core bits and can drills should generally always be used without impact! Set up your drill. To impact drilling mode! Please note that you cannot work in impact drilling mode with an SDS adapter. We recommend SDS adapters only for core bit diameters of up to max. 102 mm and a core bit useful length of max. 400 mm to be used. Appearance, size, length and number of segments vary depending on selection and diameter. Further information can be found in the data sheet photo. Different usable lengths/drilling depths – approx. 18 to 40 mm – usable length 360 mm. 44 to 112 mm – usable length approx. All other diameters approx. 395 mm usable length. The invoice with VAT shown. Please note that with strong reinforcement increased wear occurs!!!! Quality block segment (only 8 mm segment height) Purple – professional segment.