Makita HR1840 110v 18mm SDS Rotary Hammer Drill. Please Note This Is a 110v Version. Efficient tool for drilling and impact drilling. A small and light rotary hammer compatible with SDS-PLUS bits. Suitable for drilling and impact drilling. Motor capacity of 470 W and speed can be adjusted between 0 and 2 100 min-1 from a switch. Impact energy of 1.4 J and optimal drilling range of 4 – 10 mm in concrete. Drilling capacity of 18 mm in concrete. Maximum Output Power 470 W. No load speed 0 – 2100 min? Drilling Diameter in Wood 24 mm. Drilling Diameter in Concrete 18 mm. Drilling Diameter in Steel 13 mm. Optimum Drilling Diameter Range in Concrete 4 – 10 mm. Impact Energy 1,4 J. Sound Power Level (LWA) 98 dB(A). Sound Pressure Level (LpA) 87 dB(A). Noise Uncertainty (K Factor) 3 dB(A). Vibration Level (3 axes) 3,0 m/s². Vibration Level (3 axes), Impact Drilling 10,0 m/s². Vibration Uncertainty (K Factor) 1,5 m/s². Weight Without Cable (EPTA-Procedure 01/2003) 2,4 kg. Product Dimensions (L x W x H): 285 x 75 x 208 mm.