20V Brushless Rotary Hammer Kit (Model : 8910K)

Engineered for heavy-duty drilling, hammer drilling, and chiseling, the 8910K 20V Cordless Brushless Rotary Hammer Drill combines 2.2 Joules of impact energy with an efficient waterproof brushless motor. Featuring an SDS Plus tool-free chuck, 4-function operational modes, die-cast aluminum housing, and a safety torque clutch, it delivers up to 1,400 RPM and 4,500 IPM. Weighing just 2.15 kg, this versatile hammer drill comes with dual 4.0Ah lithium-ion batteries and a blow-molded case (BMC) for professional site performance.
  • Brushless Motor with High Impact Energy for Concrete Drilling: The brushless motor delivers 1.7 Joules of impact energy and an impact rate up to 5,600 BPM, enabling efficient drilling into concrete up to 24 mm in diameter, plus 28 mm in wood and 13 mm in steel – ideal for anchor installation and light demolition
  • Compact & Lightweight Design for Easy Handling: Weighing only 2.55 kg (with battery), this rotary hammer is significantly lighter than many competitors. The PA6+GF30 reinforced body keeps it durable yet easy to handle for overhead work or extended use without fatigue
  • Long Runtime with Dual Battery Compatibility: Runs up to 35 minutes on a fully charged 4.0 Ah battery. The tool accepts both 2.0 Ah and 4.0 Ah battery packs, giving you flexibility to swap in larger batteries for longer jobs or smaller ones for reduced weight when needed

Product Details

Features

  • 4-in-1 Multifunctional Operation

    Features 4 operational modes: Drilling (wood/metal), Hammer Drilling (concrete/brick), Chiseling (tile/mortar removal), and Chisel Angle Adjusting (releasing/rotating the chisel to the desired angle).

  • High-Efficiency Waterproof Brushless Motor

    Delivers maximum power efficiency, longer motor life, and superior moisture resistance, achieving up to 1,400 RPM no-load speed and 4,500 IPM impact rate.

  • Die-Cast Aluminum Gear Housing

    Built with lightweight yet exceptionally strong die-cast aluminum housing for high structural rigidity and superior heat dissipation during prolonged drilling.

  • SDS Plus Tool-Free Automatic Chuck

    Allows quick, tool-free bit changes with an automatic locking mechanism, ensuring secure bit retention under intense vibration.

  • High-Torque Safety Clutch Protection

    Integrated mechanical safety clutch automatically disengages the drive if the drill bit binds or jams, protecting the operator’s hands/wrists and safeguarding the motor armature.

  • Ergonomic 360° Auxiliary Handle & Lock-On Switch

    Includes a 360-degree rotating anti-vibration auxiliary handle with a depth gauge for exact hole depths, paired with a lock-on switch button for continuous fatigue-free drilling.

 

Specification

Model 8910K
Motor Type Brushless
Chuck Type SDS Plus
Battery Type Lithium-ion
Battery Voltage 20V
Battery Capacity 4000mAh
No-Load Speed 0-1400RPM
Impact Rate 0-5600BPM
Impact Energy 1.7J
Max Capacity In Wood 28mm
Max Capacity In Steel 13mm
Max Capacity in Concrete 24mm
Body Material PF6+GF30
Noise level 94db
charging time 110min
No-load Running Time “18.09 min /2.0Ah battery 35 min /4.0Ah battery”
Weight 2.55Kg
Packaging BMC
Includes “1pc handle 1pc guide ruler”

 

Recommended Applications

  • Concrete & Masonry Construction: Drilling anchor holes in concrete, brickwork, stone, and solid block up to 22mm diameter.

  • Chiseling & Demolition: Light demolition, tile removal, trenching, and surface scaling in renovation or electrical installation projects.

  • Wood & Steel Drilling: High-speed drilling in steel (up to 13mm) and wood (up to 28mm) using standard hex/straight shank adapters.

  • Electrical & Plumbing Installation: Mounting conduits, pipe brackets, junction boxes, and HVAC ductwork on job sites without power grid access.

 

OEM Service

We provide full OEM/ODM power tool manufacturing services customized for global importers, trade brands, and wholesale distributors:

  • Brand Logo Application: Laser marking, silk screening, or molded logo badges on the tool body, battery casing, and BMC hard case.

  • Custom Housing Colors: Custom plastic body injection molding matching your brand’s Pantone color palette.

  • Tailored Packaging & Manuals: Personalized color sleeves, custom blow mold case design, and multi-language user instruction manuals.

  • Battery & Charger Options: Options for battery pack capacities (2.0Ah, 4.0Ah, 5.0Ah) and custom power charger plug standards (EU, US, UK, AU).

  • International Compliance: Certified under CE, GS, RoHS, and EMC standards for seamless market clearance worldwide.

FAQ

Q1: What accessories are included in the standard 8910K kit?

A: The standard 8910K kit includes: 1× 20V Cordless Brushless Rotary Hammer, 2× 20V 4.0Ah Lithium-ion Batteries, 1× Fast Charger, 1× 360° Side Handle, 1× Depth Gauge, and 1× Heavy-Duty BMC Carrying Case.

Q2: What is the maximum drilling diameter in concrete?

A: The maximum recommended drilling capacity in concrete is 22mm (13mm in steel, 28mm in wood).

Q3: Does this tool feature a chiseling function?

A: Yes, it has 4 selectable functions: Drilling, Hammer Drilling, Chiseling, and Chisel Angle Rotation adjustment for precise positioning during chipping work.

Q4: What shank type does the chuck accept?

A: It utilizes a standard SDS Plus tool-free automatic chuck system compatible with all standard SDS Plus bits.

Q5: What is the minimum order quantity (MOQ) for OEM customization?

A: MOQ depends on your customization scope (e.g., logo printing, custom body colors, or localized box artwork). Contact our trade sales team for detailed OEM quotations.

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