Extreme Protection Technology (XPT) is engineered for improved dust and water resistance for operation in harsh conditions. Automatic torque Drive Technology (ADT) adjusts speed and torque during operation for optimum performance. Variable 2-speed (0-400 & 0-1,500 RPM) for increased drilling versatility. Capacity steel: 13 mm / Wood (Self-Feed Bit) Hi: 65 mm Lo: 118 mm / Wood (Hole Saw) Hi: 105 mm Lo: 159 mm / Wood (Auger-Bit): 50 mm. Max fastening torque 55 Nm (hi) / 136 Nm (low). No Load Speed (RPM): 0 - 1,500 (hi) 0-400 (low)