Maxmech URH 20-28 Cordless Rotary Hammer 28mm

The Maxmech URH 20-28 Cordless Rotary Hammer is a heavy-duty tool designed for professional use, particularly in construction and renovation, where drilling into concrete, masonry, and even light chiseling is required. The “28mm” refers to its maximum drilling capacity in concrete, indicating a powerful machine.

Key Features & Specifications (based on common 28mm cordless rotary hammers and brand patterns):

• Model: URH 20-28
• Voltage: 20V (or sometimes 28V, as seen in some professional-grade cordless rotary hammers like Würth’s H 28-MA) Lithium-Ion Battery – This high voltage is necessary to deliver the power required for rotary hammering.
• Max Drilling Capacity in Concrete: 28mm (This is its headline feature, demonstrating its capability for significant drilling in hard materials).
• Chuck System: SDS-Plus – This is the industry standard for rotary hammers, allowing for quick, tool-free bit changes and efficient transfer of impact energy.
• Operating Modes: Typically features three modes:
  • Rotary Drilling: For drilling in wood, metal, and plastic (without hammer action).
  • Hammer Drilling: Combines rotation with powerful hammering action for drilling into concrete, brick, and masonry.
  • Chiseling (Hammer Only): For light demolition work, chipping tiles, or breaking small sections of concrete (with a chisel bit).
• Impact Energy: This is a crucial metric for rotary hammers, measured in Joules (J). A 28mm cordless rotary hammer would typically have an impact energy of 2.0 Joules to 4.5 Joules or more, indicating its breaking power.