Makita 1-9/16" Rotary Hammer, accepts SDS-MAX bits, 2-mode, var. spd., case - HR4002
Powerful motor delivers 2,500 BPM for the most 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. 12 bit angle settings allow the bit to be set at different positions for operating convenience. Automatic brush cut-off protects commutator from damage for longer tool life. 2-mode operation for hammering only or hammering with rotation.
Features
- "No hammering when idling" functions helps increase tool life
- One-touch sliding chuck for quick bit changes
- Soft grip handle provides increased comfort on the job
- Accepts SDS-MAX bits
What our Experts Think
Q&A
Q: What is the Makita HR4002 used for?
A: It is a heavy-duty rotary hammer designed for drilling and chiseling in concrete, masonry, and other demanding construction applications.
Q: What type of bits does the HR4002 accept?
A: It accepts SDS-Max bits, making it ideal for large-diameter drilling, anchoring, and demolition tasks.
Q: How powerful is the Makita HR4002?
A: It features a 10 AMP motor delivering 4.6 ft.lbs. (6.2 J) of impact energy for tough drilling and chiseling jobs.
Q: What operating modes does the HR4002 have?
A: It offers two modes: Hammering with Rotation for drilling and Hammering Only for chiseling applications.
Q: What is the drilling capacity of the Makita HR4002?
A: It drills up to 1-9/16" in concrete and up to 4-1/8" with a core bit.
Q: How fast does the HR4002 operate?
A: It delivers up to 2,500 blows per minute (BPM) with a no-load speed of 680 RPM.
Q: Does the HR4002 have protection features?
A: Yes. It includes a torque limiting clutch that helps protect gears by disengaging if the bit binds.
Q: Is the Makita HR4002 comfortable to use?
A: Yes. The rubberized soft grip and ergonomic handle design improve comfort and control during extended use.
Q: What accessories are included with the HR4002?
A: The tool includes a side handle, depth gauge, hammer bit grease, and plastic carrying case.
Q: How much does the Makita HR4002 weigh?
A: It weighs approximately 14.6 lbs., balancing power and portability for professional applications.
Q: Who is the Makita HR4002 best suited for?
A: It is ideal for contractors, electricians, plumbers, and construction professionals needing reliable SDS-Max performance for concrete drilling and demolition work
Maintenance Tips
- Remove batteries before cleaning, inspecting, or performing maintenance.
- Clean sawdust, wood chips, and debris from the chain, guide bar, sprocket area, and cooling vents after each use.
- Check and adjust chain tension regularly using the tool-less chain adjustment system for safe and efficient cutting.
- Keep the 16" guide bar and chain properly lubricated; refill the automatic chain oil reservoir when needed.
- Inspect the chain for dull, damaged, or worn cutters and sharpen or replace as necessary.
- Clean the guide bar groove and oil ports to maintain proper chain lubrication.
- Check the chain brake, trigger switch, and safety features before each use.
- Keep battery contacts clean and store BL1850B batteries in a cool, dry location away from extreme temperatures.
- Avoid harsh cleaners such as gasoline, thinner, or alcohol; use a clean cloth for routine maintenance.
- Install the chain cover before storage and keep the saw in a dry, protected area.
- Use genuine Makita replacement parts, batteries, and chargers to maintain performance and reliability.
Damage 
Loss 
Theft 
