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21V Cordless Rotary Hammer with Carbon Brush - GFDYS01 Model for Professional Drilling 21V Cordless Rotary Hammer with Carbon Brush - GFDYS01 Model for Professional Drilling
21V Cordless Rotary Hammer with Carbon Brush - GFDYS01 Model for Professional Drilling 21V Cordless Rotary Hammer with Carbon Brush - GFDYS01 Model for Professional Drilling
21V Cordless Rotary Hammer with Carbon Brush - GFDYS01 Model for Professional Drilling 21V Cordless Rotary Hammer with Carbon Brush - GFDYS01 Model for Professional Drilling
21V Cordless Rotary Hammer with Carbon Brush - GFDYS01 Model for Professional Drilling 21V Cordless Rotary Hammer with Carbon Brush - GFDYS01 Model for Professional Drilling
21V Cordless Rotary Hammer with Carbon Brush - GFDYS01 Model for Professional Drilling 21V Cordless Rotary Hammer with Carbon Brush - GFDYS01 Model for Professional Drilling
21V Cordless Rotary Hammer with Carbon Brush - GFDYS01 Model for Professional Drilling 21V Cordless Rotary Hammer with Carbon Brush - GFDYS01 Model for Professional Drilling

21V Cordless Rotary Hammer with Carbon Brush - GFDYS01 Model for Professional Drilling

US$ 16.00 ~ 32.00
Min.Order: 50
Product origin: Ningbo, Zhejiang, China
Category: Tools
Product Name: Tools
Availability:In Stock
Product Review : 1 Reviews
Infringement complaint:
* Please contact the supplier via whatsapp first before placing an order
  • Model Number : GFDYS01
  • Power Supply : 21V Lithium-ion Battery
  • Motor Power : 650W
  • No-load Speed : 0-600 RPM
  • Impact Rate : 0-2000 IPM
  • Impact Energy : 1.7J
  • Max Drilling Diameter : 20mm (Concrete)
  • Chuck Type : SDS-plus
  • Weight : 1.2kg
  • Battery Options : 5C/3C/10C 2000mAh
  • Color Options : Customizable (Pantone Matching)
  • Certifications : CE, RoHS Compliant

What it does is deliver solid impact in a compact frame — the 21V lithium system and 650W motor push 1.7J impact energy through SDS-plus, so you're getting real concrete drilling to 20mm without the cord, and most crews find the 1.2kg weight a relief on overhead work.

Speeds run 0-600 RPM and impact rate hits 2000 IPM, but the real win here is the carbon brush system — it's user-serviceable, basically, and extends motor life significantly compared to sealed units you'd normally junk after brush wear.

Battery options are 5C, 3C, or 10C at 2000mAh — we usually stock the 5C most often since it balances runtime and weight, but custom color matching via Pantone is standerd for OEM orders (MOQ typically 500 units or so).

CE and RoHS compliant out of the factory, so shipments to the EU clear customs clean every time — we include COA and SDS with each batch, and import docs are handled before departure, usually within 48 hours of production finish.

Not great for heavy chiseling beyond light demolition — teh 1.7J impact energy keeps it fast for drilling but it'll stall on rebar, which is really fine for typical masonry drilling where you don't want bulk of a full SDS-max gun.

One concrete detail: the battery indicator light pulses slow when you've got about 20% left, not when it's dead — that extra warning has saved a few site teams form stranded drills mid-floor pour, anyway.

Frequently Asked Questions

What are the available battery options for the GFDYS01, and how do they affect runtime?

We offer 5C, 3C, and 10C 2000mAh batteries. The 10C delivers higher discharge for sustained heavy drilling, while 5C and 3C are lighter for general tasks. Runtime varies with load, but all are 2000mAh capacity.

Is the SDS-plus chuck compatible with standard SDS bits?

Yes, it accepts all standard SDS-plus bits, which are the most common for concrete drilling. No adapters needed.

What certifications does this rotary hammer have, and can you provide documentation?

It's CE and RoHS certified. We can supply the certificates upon request — just ask your sales rep.

Can we customize the color, and what's the minimum order quantity?

Absolutely, we match Pantone colors for branding. MOQ for custom color is typically 500 units, but we can discuss smaller runs for sample orders.

The specs show an LED light and battery indicator — are these built-in or separate?

Both are built into the tool body. The LED lights up the work area, and the battery indicator shows remaining charge on the battery pack.

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