4, the hole diameter: φ 31 mm, φ 13.5 mm, φ 9.8 mm
5, drilling time:<=40s
6, the machine quality: 23 kg
7, physical size: 530 mm x 330 mm x 420 mm
spec
1, motor power: 2, rated voltage: 380 v 3, no-load speed: >= 400 r/min 4, the hole diameter: φ 31 mm, φ 13.5 mm, φ 9.8 mm 5, drilling time:<=40s 6, the machine quality: 23 kg 7, physical size: 530 mm