Includes keyless chuck (capacity 0.5 – 3.2mm). A precision ball bearing minimises spindle side play. Spindle lock button for bit changing eliminates the need for spanners. Recessed spindle head for inserting MICROMOT steel collets. Efficient forced ventilation cooling of high quality, 5 pole motor. Fibreglass reinforced polyamide casing. 12-18 DC, maximum power consumption 100W. Electronic speed control of 3000-15,000 RPM. Length 185mm and weight approx 450g. Requires power supply D530-052 or D530-053.