The Maxmech Cordless Rotary Hammer 28mm is a powerful tool designed for heavy-duty drilling into concrete, masonry, and even some light chiseling work. The “28mm” refers to its maximum drilling capacity in concrete, indicating its capability for significant construction and renovation tasks.
While specific Maxmech models and detailed specs can sometimes be hard to pinpoint without a model number, here’s a general overview of what you can expect from a 28mm cordless rotary hammer, particularly in the Kenyan market:
Key Features and Specifications (Typical for a 28mm Cordless Rotary Hammer):
- Drilling Capacity: Max 28mm (1 1/8 inch) in concrete. This is a substantial capacity, suitable for most anchor installations, rebar drilling, and general concrete work. It will also handle larger holes in wood and steel.
- Cordless Power: Powered by high-voltage Lithium-ion batteries (typically 18V, 20V, or 24V, and sometimes even higher like 36V or dual 18V systems for increased power and runtime). These drills usually come with one or two batteries and a charger.
- SDS-Plus Chuck System: This is standard for rotary hammers. It allows for quick, tool-free bit changes and provides a secure connection that transmits the hammering action efficiently.
- Multiple Modes: Rotary hammers typically offer at least three modes:
- Rotary Drilling: For drilling into wood, metal, plastic without impact.
- Hammer Drilling: For drilling into concrete, brick, and masonry with both rotation and hammering action.
- Chiseling (Hammer Only): For light demolition work like chipping tiles, removing plaster, or breaking up small sections of concrete. Some models might also have a “variolock” feature for adjusting the chisel angle.
- Impact Energy (Joules): This is a critical specification for rotary hammers, measuring the force of each blow. A 28mm rotary hammer typically has an impact energy ranging from 2.5 Joules to 3.5 Joules or more. Higher joules mean faster drilling in concrete.
- Brushless Motor: Many modern cordless rotary hammers, including those from Maxmech, feature brushless motors. This provides:
- Increased Power & Efficiency: Better power transfer and longer runtime per battery charge.

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