Compact, lightweight yet packs a punch. This Makita SDS can drill up to 65mm in concrete with a diamond core The Makita HR1840 is a compact and lightweight 18mm SDS-PLUS Rotary Hammer that has been adapted for SDS-Plus bits. It can drill up to 65mm in concrete with a diamond core making it suitable for the most demanding tasks. The one-touch sliding chuck makes for easy bit change increasing productivity. It features two operation modes: Rotary Hammer and Rotary Only depending on the application. Features: Variable speed trigger Forward/reverse rotation Torque limiter Double insulation Adapted for SDS-PLUS bits Rotary Only/Rotary Hammer modes One-touch sliding chuck for an easy bit change Lock-on button Comes with: Side handle Depth stop Carry case Specification: Max in Concrete (TCT bit) : 18mm Max in Concrete (TCT Core) : 35mm Max in Concrete (Diamond Core) : 65mm Capacity in Steel: 13mm Capacity in Wood: 24mm Impact Energy: 1.4 J Blows per Minute: 0 -4, 800 bpm No Load Speed: 0 -2,