Makita HR1840/2 18mm 2-Mode SDS Plus Rotary Hammer Drill 240V / 470W with Case Features 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. Max. drilling capacity of 18 mm in concrete. Comes With: 415486-9 ( DEPTH GAUGE ) 687010-0 ( Band, 5704R ) 821706-5 ( Plastic Carrying Case ) Product Specifications: Continuous Input Power: 470 W No load speed: 0 - 2100 min⁻¹ Max. Drilling Diameter in Wood: 24 mm Max. Drilling Diameter in Concrete: 18 mm Max. Drilling Diameter in Steel: 13 mm Optimum Drilling Diameter Range in Concrete: 4 - 10 .