Dera Rotary hammer 1200W

A Dera 1200W rotary hammer is a powerful and versatile electric power tool designed for heavy-duty drilling and chiseling in tough materials like concrete, stone, brick, and masonry. Unlike a standard hammer drill, a rotary hammer uses a piston mechanism to deliver powerful, percussive blows, making it significantly more effective for breaking through hard materials.

Key Features and Specifications of a Dera 1200W Rotary Hammer:

Based on common models available in the Kenyan market:

• Power Input: 1200W. This high wattage indicates a strong motor capable of delivering significant impact energy for demanding tasks.
• Voltage: Standard 220-240V ~ 50/60Hz, suitable for the Kenyan electrical grid.
• Functions (Modes): Most 1200W Dera rotary hammers are 4-function tools, offering:
  1. Rotary Drilling: For drilling into wood, metal, plastic (without hammer action).
  2. Hammer Drilling: For drilling into concrete, stone, and masonry (combines rotation with hammering).
  3. Chiseling (Hammer Only): For light demolition, breaking, chipping, and chiseling concrete, tiles, or brickwork (hammer action only, no rotation).
  4. Rotation with Chiseling (often called “Variolock” or “positioning chisel”): Allows the chisel to be rotated and locked into different positions for optimal working angles.
• Chuck System: Typically features an SDS-Plus chuck system. This allows for quick, tool-free bit changes and provides efficient power transfer to the bit.
• Impact Energy (Joules): This is a critical specification, indicating the power of each hammer blow. For a 1200W model, impact energy can be around 3.0 Joules (J) or higher.
• No-Load Speed: Approximately 0-800 RPM (revolutions per minute) or similar variable speed.
• Impact Rate (Blows Per Minute – BPM): Around 0-4000 BPM or 4590 times/min. This indicates how many hammer blows are delivered per minute.
• Drilling Capacity:
  • Concrete: Typically up to 26mm (or sometimes 28mm-30mm) in diameter.
  • Steel: Around 13mm.
  • Wood: