Chuck key, hex wrench Specifications Input Wattage 250W Capacity Steel: 13mm (1/2") Wood: 24mm (15/16") Max. Stroke 52mm (2-1/16") No Load Speed (rpm) 570, 890, 1,300, 1,900, 2,670 Net Weight 20kg (44.1lbs) Power Cord 1.75m (5.7ft)