The TGD-0300 (1600 W) and TGD-0310 (2200 W) Universal Coring Machines are powerful diamond drilling units serve for shock free drilling into concrete, natural stone and asphalt with diameter ranges 16-162 mm and 25-202 mm for TGD-0300 and TGD-0310 respectively. Both models are optimal complements to handheld diamond drilling machines.