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Brushless Cordless Li-ion Rotary Hammer Concrete Fast Stone Garage Workshop
US$35.00
500 Pieces
Product profile
Customization
AvailableFlat Drill Function
With Flat Drill FunctionSpeed Control Function
With Speed Control FunctionModel NO.
CH-20ABrand
/Power Rating
850WImpact Rate
0-4500 BpmImpact Energy
2.0Power Supply Type
AC PowerDiameter of Bore
26mmUnloaded Speed
1400r/mMax Drilling Capacity (Concrete)
26 mmMax Drilling Capacity (Wood)
30 mmMax Drilling Capacity (Metal / Steel)
13 mmMotor
BrushelessBattery.Voltage
Max 21V*.D.CBattery.Capacity
4.0ahCharger Output
20V.DC.1.3ACharge.Time Max
3 HoursTransport Package
BMC Box or BagSpecification
47.5x45x35cmTrademark
CustomizationOrigin
ChinaHS Code
90153000Production Capacity
120000Key features
850W Brushless Motor - stable power, no brushes, longer tool life
3.6J Impact Energy - fast drilling in concrete and masonry
SDS-Plus Keyless Chuck - swap bits in seconds, no key
3-Function Knob - Drill / Drill and Hammer / Hammer + chiseling
360-Degree Rotatable Handle - any angle, less hand fatigue
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 18 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤0.60h
AI-Powered supplier vetting
SummaryThe supplier is identified as a professional technical supplier with 3D design, ODM, OEM, and broad customization capabilities. It reports five production lines, 21–30 quality-control staff, multiple manufacturing and testing facilities, written inspection procedures, valid manufacturing contracts with related subcontractors, and inventory capability. R&D activity is evidenced by new products developed within the past year and five years of total R&D engineer experience. However, no supplier-management-system certification, overseas agents or branches, overseas showroom, or available SDK is reported. The supplier has attended the Canton Fair, but overseas service coverage is stated as zero countries. Financial records are indicated for the previous three years, but no financial performance details are provided. Customer relationships are suggested through OEM service for popular brands, although no specific customer names or cases are disclosed.
Supplier typeThe supplier explicitly describes itself as a professional technical supplier and operates in household-appliance manufacturing, sales, and related import/export activities. Its company description also identifies four brands established in Asia and Middle Eastern countries, supporting classification as a branded manufacturing supplier with technical capabilities.
CertificationsSupplier-management-system certification is explicitly reported as NIL. This is a stated absence of certification evidence for the specified management-system field.
R&D capabilityThe supplier reports professional technical R&D capability, five years of total R&D engineer experience, new products developed within the past year, 3D software design services, ODM capability, and OEM service for popular brands. It does not have an available SDK, but that limitation does not negate the documented product-development evidence.
Production capacityThe supplier operates five production lines, reports 21–30 quality-control staff, lists injection molding, mixing, winding, motor testing, vibration testing, gear measurement, and other equipment, and follows written finished-product inspection instructions. It also reports valid manufacturing contracts with related subcontractors, inventory capability, and one-month average lead times in both peak and off seasons.
Customization capabilityThe supplier explicitly supports customization from samples, minor and flexible customization, customization from designs, and full customization. Its 3D design services, ODM offering, and R&D-based design services provide additional direct evidence of product adaptation and development capability.
Product Q&A
Q:What is the difference between a rotary hammer, a hammer drill and an impact drill?
A:
An impact drill uses a quick pulsing blow to help drill into brick and is best for light masonry and fastening. A hammer drill adds a proper hammering piston for drilling into masonry and concrete, but with lower impact energy. A rotary hammer (rotary hammer drill) uses a pneumatic-style hammer mechanism with high impact energy (the CH-20A delivers 3.6J), so it drills much faster in concrete and can also chisel and split. For heavy masonry, concrete and demolition work, a rotary hammer like the
Q:What is SDS-Plus and which bits fit the CH-20A?
A:
SDS-Plus is a standardized chuck system for hammer drills and rotary hammers. It uses a grooved shank that the chuck grips with metal springs, so the bit stays locked under heavy impact while still allowing a slight sliding stroke. The CH-20A takes SDS-Plus keyless drill bits and SDS-Plus chisels - the most common and widely available system - so you can use standard SDS-Plus drilling and chiseling bits.
Q:What are the 3 functions (modes) on the knob?
A:
The single knob selects three modes: (1) Drill - rotation only, for drilling into wood, metal and plastic or fastening; (2) Drill & Hammer - rotation plus impact, for drilling holes in masonry and concrete; (3) Hammer - high-impact chiseling for splitting, breaking and chasing grooves. Some accessories also allow a chiseling angle adjustment for different chisel work.
Q:What materials can the CH-20A drill and how big holes?
A:
The CH-20A is built for concrete, masonry, stone and brick - drilling holes and chiseling. The 850W brushless motor and 3.6J impact make it fast in these hard materials. The exact maximum drill diameter depends on the SDS-Plus bit you use - please contact us with your application (material and hole size) and we will confirm the recommended bit and kit.
Q:Can I customize the product with my brand?
A:
Yes, we fully support OEM and ODM customization: custom logo, brand name, and model number on the tool and packaging; housing color matching to your brand (PMS/RAL); custom retail packaging with your artwork, barcodes, and multilingual manuals; flexible battery capacity and accessory kit configuration. The tool is compatible with standard 20V Li-ion battery platforms - please send us your requirements.
Send Inquiry
*To:
Nantong Change Electric Tools Co., Ltd.
Nantong Change Electric Tools Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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