102mm Laser Welded Diamond Dry Core Drill

102mm Laser Welded Diamond Dry Core Drill 102mm Diiamond core drill bits are professionally designed for dry drilling wall such as bricks, block, concrete, asphalt and heavily reinforced concrete. It 's very easy to handle with electric hand-held driller and stand drilling machines. Laser welding prodcution line offers the best welding strength for safe drilling. There are cooling holes on the tube, reducing temperature and letting the concrete out. Dry core drill bits are ranging 1 1/4'' (32mm) to 8''(200mm) in size. Effective drilling length is 150 mm. Our main product ranges include Diamond saw blade and cup wheel, Diamond wire and core drill. Detailed sizes are as below: Item No. Diameter Segment Height Arbor Effective Length CDCD03215010 32mm 10mm M16 150mm CDCD03815010 38mm 10mm M16 150mm CDCD04215010 42mm 10mm M16 150mm CDCD05215010 52mm 10mm M16 150mm CDCD06815010 68mm 10mm M16 150mm CDCD08515010 85mm 10mm M16 150mm CDCD10215010 102mm 10mm M16 150mm CDCD10715010 107mm 10mm M16 150mm CDCD11715010 117mm 10mm M16 150mm CDCD12715010 127mm 10mm M16 150mm CDCD15215010 152mm 10mm M16 150mm CDCD16215010 162mm 10mm M16 150mm CDCD18215010 182mm 10mm M16 150mm CDCD20015010 200mm 10mm M16 150mm Package  Each diamond core drill has seperated package. Delivery time Delivery time of core drill for batch order is about 3 weeks. Shipment By air, sea, express all acceptable for core drill bits.