Features TYROLIT , one of the world’s leading manufacturing of bonded grinding , cutting , sawing , drilling and dressing tools and system supplier of tools and construction industry. Decades of experience in the production and application of core drill bits and core drill system give TYROLIT the edge in the marketplace As results, TYROLIT product can be viewed as innovative solutions for large-scale projects while remaining cost-effective for everyday construction site use. Especially suitable for drilling reinforced or normal concrete. Can be operated on a drilling or hand-held. TYROLIT core drill bits are designed to work perfectly with TYROLIT Hydrostress machines. DRA400 and DRU400 The professional core drilling systems for a versatile application range. The optimised support with sturdy roller guide guarantees precise drilling. The proven ModulDrillTM quick clamping system enables fast and secure mounting of drill motors. In addition, a centre indicator, angle indicator and two speed feed gear enhance user-friendliness and help save valuable working time. The compact lightweight construction for easy transport, assembly and disassembly complete the system. Easily adjustable and interchangeable low wear roller guide. Easy diagonal drilling thanks to angle indicator. The compact lightweight construction for easy transport, assembly and disassembly complete the system. Design Aluminium dowel vacuum foot (DRU400) Steel dowel foot (DRA400) Two speed feed gearbox i=1:1 & i=1:3.5 Feed using hand crank Diagonal adjustment 90°–45° Centre indicator (DRU400) Angle indicator Spirit level Adjustable feet (M12) Adjustable and interchangeable roller guides Handle 1 piece ModulDrillTM quick change clamping system Drill diameter range / 50–250 mm Max. drill diameter with distance plate 180 mm / 400 mm 4 Max. drill diameter with water collecting ring / 250 mm Max. drill bit length / 746 mm Length / 305 mm Width / 205 mm Height / 1 055 mm