OP
Barry White
Did my first 110mm core with an old black n decker drill I did eventually get through but was hard work and the drill was smelling around the gearbox. No clutch either but not much power so could manage. so no doubt that drill will fair a bit better. But it wont do it many times before the clutch starts slipping constantly. Old imperial bricks seem harder to drill than the modern block and hollow bricks too.