Makita HR1841FJ Rotary Hammer in M-box | 1.4J 470w The first 18 mm rotary hammer in its class equipped with Anti Vibration Technology (AVT). Ideal rotary hammer for 5, 6, and 8 mm holes, but can drill up to 18 mm in concrete. Extremely low vibration level thanks to AVT. Over 3.5 hours of responsible uninterrupted work. Very suitable for overhead work due to its design and good grip. Compact rotary hammer. Lightweight. Equipped with LED lighting for better visibility. Technical specifications Ideal drilling range (concrete) 4 - 10 mm Impact energy (EPTA) 1.4 joules Power consumption 470 Watt Connection/chuck SDS-PLUS Dimensions l x w x h 285x75x208 mm Suitable for SDS-PLUS drills yes Variable speed control (switch) yes (Safety) slip clutch yes Built-in lighting yes Cable length 4.0 m Weight (EPTA) 2.0 kg Sound pressure level (LpA) 87 dB(A) Sound pressure level (K) 3 dB(A) Vibration ah hammer drilling in concrete 7.5 m/s² Vibration (K) hammer drilling in concrete 1.5 m/s² Drilling capacity in wood 24 mm Drilling capacity in metal 13 mm Core bit capacity 35 mm Diamond core drill capacity 32 - 65 mm Number of mechanical speeds 1 Number of strokes (setting 1) 0 - 4800 min-1 Concrete drill diameter 4 - 18 mm Left/right rotation yes Soft grip yes No-load speed (setting 1) 0 - 2100 min-1 Vibration (K) drilling in metal 1.5 m/s² Vibration ah drilling in metal 3.0 m/s² Voltage 230 V Standard Scope of delivery Mbox no. 1 821549-5 Depth stop 415486-9 Dust extraction adapter 198376-8 Case inlay 839214-2 Documents Drawing and parts list User manual