Makita HR1830F 11/16-Inch 4.2 Amp Rotary Hammer Kit with LED Light L.E.D. light illuminates drilling surface for more accurate work Variable speed (0-1,500 RPM & 0-5,000 BPM) for demanding applications Torque limiting clutch engineered to prevent gear damage by automatically disengaging gears if the bit binds Sequential impact timing delivers timed hammering during rotation to minimize overlapping bit impacts resulting in up to 50% faster drilling Makita Motor Advantage engineered with field core interlocking steel laminations, dual ball bearing armature and more copper commutator bars, increasing energy transfer efficiency for more power and longer tool life Extended life brushes are longer for more work between service intervals and less downtime 2-mode operation for ""Rotation Only"" or ""Hammering with Rotation"" ""No hammering when idling"" function helps increase tool life Soft grip handle provides increased comfort on the job Compact with less weight (4.2 lbs.) Recessed lock-on button for continuous use Ideal for overhead applications and working in confined areas Accepts SDS-PLUS bits Side Handle (154842-5) Depth Gauge (415486-9) Tool Case HR4013C HR2621 HR2611F HR2811FX HR2475X2 HR2475 HR4510C HR3210C HR2811F HR2470F HR4002 HR5210C HR4041C HR4001C HR4010C HR2432 HR5000 Dual operation mode;rotation only and hammering with rotation Variable speed (0-1,500 RPM) and (0-5,000 BPM) for demanding applications "No hammering when idling"function ensures extra-low vibration under no load Carbon brushes for extended service life Recessed lock-on button for continuous use