18V Cordless Impact Wrench Combo Kit

  • 3.3Ah Li-ion Battery
  • Tough IP 56
  • Impact Wrench and Hammer Drill & Driver 


EYC160LR Tough IP™ Li-ion 18-volt, 3.3Ah Cordless ½” Hammer Drill and Driver and ½” Impact Wrench Kit for high-power drilling and fastening in masonry, metal and wood

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Construction professionals that drill holes and drive fasteners into wood, metal or concrete plus do repetitive bolt/nut fastening, scaffold assembly/disassembly and lag bolt-driving need the versatility of a cordless hammer drill and the adjustable power of an impact driver.

The 18-volt EYC160LR packages that versatility into one kit. The ½” EY7950X hammer drill and driver and the EY7551X impact wrench stand at the ready to complete a variety of heavy-duty jobs that electricians, general construction contractors, system installers, heating, water and sanitation technicians can throw at them.

Hammer drill versatility

Whether it’s masonry, metal or wood drilling or fastening, the EY7950X, at only 5 lbs. with the battery, is easy to use in overhead or far-reaching applications.

At only 9-1/4” long x 9-3/4” tall x 2-1/2” wide, the compact tool delivers 478 in.-lbs. of torque and is capable of drilling up to ½”-diameter holes in metal or masonry or up to 1-7/16” diameter holes in wood. The two-speed transmission produces 50-430 rpm/900-7,740 ipm in low speed and 160-1,650 rpm/2,800-29,700 ipm in high speed. The variable speed and reversible tool has the power to efficiently drive up to 5/16” diameter wood and up to ¼” diameter self-drilling screws.

The ½” metal heavy-duty keyless chuck allows easy bit changes, yet holds the bit firmly during drilling, hammer drilling and fastening. An electric brake stops the bit immediately when the trigger is released and an LED light illuminates the work area for accurate drilling or fastening.

Workers can select one of 18 clutch settings, which steps in 3.0 in. lbs. increments from 8.8 to 61 in. lbs., to match torque to fastener driving needs.

Impact wrench power

Professional tradesmen who do repetitive bolt/nut fastening, scaffold assembly and disassembly and repetitive lag bolt driving need the compact yet powerful EY7551X ½” square-chuck impact wrench. It delivers up to 1,815 in. lbs. of variable-speed power in forward or reverse.

Three settings allow the user to match torque and speed to the job. The High/Hard setting is best for heavy driving jobs such as setting M16 fasteners, lag bolts, tightening large bolts and nuts or driving long screws. In this setting, it delivers 0-2,300 no-load rpm, 1,815 in. lbs. of torque and 0-3,500 impacts/minute (ipm). The Medium setting is suited for driving smaller lag bolts and screws as well as tightening M14 fasteners, delivering 0-1,400 no-load rpm, 1,240 in. lbs. of torque and 0-2,800 ipm. For fastening M10-sized fasteners or jobs that require controlled power and finesse, the Low/Soft setting delivers 0-1,000 rpm, 440 in.-lbs. of torque and 0-2,000 ipm.

An electric brake stops the ½” square chuck instantly in all modes; a built-in LED light greatly improves work visibility. Weighing just 3.6 lbs. with battery, the compact tool measures just 2-13/32” wide, 9-17/32” tall and 6-1/8” long. A convenient built-in belt hook keeps the tool handy.

The kit also features the EY9HX110E ¼” hex quick-change chuck adapter.

High-tech components deliver speed, power and durability

Both tools are powered and controlled by a brushless motor, durable switch and sealed control circuits in the tool body and battery pack. These high-tech and resilient systems deliver top power, speed, runtime and long tool life. Because electronics replace brushes in the tool, the tool creates less heat and uses power much more efficiently than conventional motors found in many cordless tools. That means longer runtimes between charges, cooler operation and longer tool and battery life. Its design also allows it to operate under substantial loads, making it less likely to burn out when used for heavy-duty jobs.

Learn more about Panasonic's lithium impact technology, view the Impact Counter Card

Tough and long-lasting battery packs

The kit comes with two Panasonic 18-volt 3.3Ah LR Li-ion battery packs. They are built for heavy use, long runtimes between charges and long cycle life. Unlike manganese-based Li-ion batteries used in many cordless power tools, Panasonic’s exclusive cobalt Li-ion battery technology produces less internal heat buildup that can kill battery packs. The battery packs also feature Panasonic’s Solid Solution technology, a proprietary process for dissolving and hardening cobalt and nickel and other key battery components. This unique chemistry dramatically improves battery pack safety, reliability and power output. A special heat-resistant ceramic coating layer separates cells and protects them from heat buildup. The chemistry, battery design and manufacturing process add up to powerful batteries that promise to deliver long running lives.

Battery packs that are smart, too

Sometimes professional users are their own tool’s worst enemy, attempting to push them past their design limits. This can lead to irreversible battery or tool damage. That’s why Panasonic 3.3Ah LR battery pack cells are independently monitored for even discharge while preventing over-charging and over-discharging. An over-discharge sensor prevents the user from running the tool after it reaches the point where too-low voltage output could damage the battery and the tool. Plus, an internal temperature sensor flashes a warning light if internal temperatures rise, and then cuts off tool power if battery temperature reaches critical levels.

Getting water into the battery doesn’t have to mean it’s a goner. Panasonic engineers have added built-in vents in the battery case so water can easily drain out of the battery pack. The battery, which is easy to remove using a simple slide-down release button, charge to 80 percent capacity in 50 minutes and fully charge in 65 minutes with the EY0L81B charger that comes with the kit.

Tough tools for tough conditions

The EY7950 3.3Ah 18-volt hammer drill and driver and the EY7551 ½” square chuck impact wrench have an IP56 rating that proves the tools’ toughness claims. This rating means the tools have withstood demanding laboratory tests of working in extremely dusty work environments and the effects of water getting sprayed on the tool by powerful jets. In the field, it assures professional tradesmen have tools that can stand up to the rigors of hard jobsite use.

The IP rating is established by the International Electrotechnical Commission (IEC) and is outlined in IEC 60529. The standard outlines a coding system that indicates the degree of protection an electrical machine’s enclosure offers internal components. Based on objective testing, it assigns a rating to the enclosure’s ability to keep potentially damaging solid foreign objects (dust and contaminants) and water out of the tool under increasingly difficult conditions.

The dust protection test subjects the tool to a very dusty environment and then puts it to work to assure the tool was unaffected by dust exposure. In the grueling test, the tools proved that they achieved a dust protection level of five out of six levels; the sixth level is for dust-tight tools. It’s a good indication that the tool’s design keeps potentially harmful contaminants out, assuring long life and top performance that professionals demand.

Similarly, the water protection test put the tool up against increasing levels of water exposure. It attained a six out of eight levels rating, withstanding the effects of powerful water jets.

Whether it’s extremely dusty work conditions or work in damp or wet locations, users will appreciate a tool that will keep working when others would likely fail. Consult the safety and operating instructions for more information.

Learn more about Panasonic's Intelligent Power Tools and the IP56 code, view What Is Tough IP

Kit contents
Quantity Description
EY7950 18-volt hammer drill and driver
EY7551 18-volt ½” square chuck impact wrench
EY9L50B 18-volt 3.3Ah Li-ion battery packs
EY0L81B battery charger
Plastic carrying case
EYHX110E ¼” hex quick-change chuck

Hammer drill and driver performance

Impact wrench performance

SpecificationsExpand All

    • Description
    • IP Approved
    • Battery
    • Voltage
    • Compact Size
    • Light Weight
    • Blows Rate per Minute (rotation with hammering)
    • Speed at No Load (rotation only)
    • Clutch torque (approx.)
    • Chuck
    • Hammering Force
    • Slow start switch for accuracy
    • Dual Function
    • Bit Adapter
    • Charging Time (Usable/Full)
    • Electric Brake
    • LED Work Light
    • Belt Hook
    • Dust Collection Cup
    • Side Handle
    • Ergonomic
    • Extra Battery Included
    • Description
    • Battery Capacity
    • IP Approved
    • Voltage
    • Chuck
    • Compact Size (H x W x D)
    • High Power
    • Electric Brake
    • LED Work Light
    • Belt Hook
    • Charging Time (Usable/Full)
    • Speed at No Load
    • Impact/min
    • UPC



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