Diamond Core Drill Bit Core Drill Bit Wet Dry Ø 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 concrete, old concrete, fireclay, masonry, brick, clinker, sand-lime brick, general. At the Dry -Drilling suitable for. Masonry, bricks, sand-lime brick, screed, concrete. Attention: If you choose a suction device, it will fit up to Ø 132mm. Diameter selectable: 18 – 350 mm. 400mm nominal – varies from 382 to 400mm. 10 mm for Great Wall, ZigZag – Roof and Roof Life segments. 8 mm for block purple. Drill bit holder: 1¼ UNC. Professional Great Wall Segment – from 50 mm diameter up to 200 mm with attachment notches! The drill bits below 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 concrete with reinforcement! We recommend this segment with up to 12 mm reinforcement. Please take into account that increased wear occurs with heavy reinforcement!!! Quality ZigZag Yellow – professional segment with fast feed and good service life suitable for concrete with strong reinforcement! 25 mm and more no problem! Only available in 83mm, 102mm, 112mm and 162mm! 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 drill bits and can drill bits should generally always be used without impact! Set up your drill. To hammer drill mode! Please note that you cannot work in hammer drill mode with an SDS adapter. We only recommend SDS adapters for drill bit diameters of max. 102 mm and a drill bit useful length of max. 400 mm to use. Appearance, size, length and number of segments vary depending on selection and diameter. Further data can be seen 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. You must check the desired billing address before purchasing. Messages outside of the checkout process, e. Please take into account that increased wear occurs with heavy reinforcement!!!! Please take into account that increased wear occurs with heavy reinforcemen.