- Battery capacity (Ah): 8.0-12.0- Idle speed (min-1): 130-520- Stroke (mm): 135- Magnetic holding force (Nm): 9000- Brushless motor: Yes- Core drill bit ø (mm) max.: 35- Core drill drilling depth (mm) max.: 50- Tool holder: 3/4 in Weldon- Magnetic base (mm): 195 x 70- Scope of delivery: - Centre p ...