DONGCHENG ELECTRIC ANGLE GRINDER - 4" x M10 x 900W S1M-FF21-100 (DSM21-100)

Reference: DCF-210B

Condition: New

Key Features and Specifications:
Feature Specification (DSM21-100 / S1M-FF21-100)
Tool Type Electric Angle Grinder (Corded)
Rated Power Input 900W
Max Wheel Diameter Φ100mm (4 inches)
No-Load Speed 12,000 /min or 13,000 r/min (High-speed single setting)
Spindle Thread M10 (Common standard for 4" grinders)
Hole Dia. of Wheel Φ16mm (Standard arbor size for 4" discs)
Body Design Ultra-slim body (e.g., 186mm or 178mm circumference/length) for comfortable, single-handed control.
Dust Protection Labyrinth dustproof structure and often a detachable dustproof filter to protect the motor and extend tool life.
Motor Life Features Auto-stop carbon brushes to prevent armature damage when brushes wear out.
Net Weight Approx. 2.1kg

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The DONGCHENG DCF-210B (DSM21-100) Electric Angle Grinder is a corded 4-inch grinder designed for general cutting, grinding, and polishing applications on metal and stone.

The two model numbers provided refer to the same machine: DSM21-100 is the commercial model name, and S1M-FF21-100 is the regulatory/factory model code.

Key Features and Specifications:
Feature Specification (DSM21-100 / S1M-FF21-100)
Tool Type Electric Angle Grinder (Corded)
Rated Power Input 900W
Max Wheel Diameter Φ100mm (4 inches)
No-Load Speed 12,000 /min or 13,000 r/min (High-speed single setting)
Spindle Thread M10 (Common standard for 4" grinders)
Hole Dia. of Wheel Φ16mm (Standard arbor size for 4" discs)
Body Design Ultra-slim body (e.g., 186mm or 178mm circumference/length) for comfortable, single-handed control.
Dust Protection Labyrinth dustproof structure and often a detachable dustproof filter to protect the motor and extend tool life.
Motor Life Features Auto-stop carbon brushes to prevent armature damage when brushes wear out.
Net Weight Approx. 2.1kg
Standard Accessories Wheel Guard, Auxiliary Handle, Wrench, Carbon Brush Set.

This grinder is a powerful and compact choice for DIY enthusiasts and professionals seeking a standard 4-inch tool for cutting, grinding, burring, and metal cleaning tasks.