Understanding the “H R 26mm” Designation in Rotary Hammers

The term H R 26mm often appears in discussions about rotary hammers and SDS‑plus drills, especially when users refer to the size of the drill chuck or the maximum core diameter that a tool can handle. In the Makita HR series, the HR prefix denotes “Hammer‑Ready,” a line of high‑performance rotary hammers designed for concrete, masonry, and heavy‑duty drilling. The “26mm” specification typically indicates the largest drill bit diameter the machine can accept without compromising performance.

Why 26mm Matters for Professionals

When you work on projects that require large‑diameter holes—such as installing anchors, running conduit, or creating openings for pipework—a 26mm capacity provides the flexibility needed to complete the job efficiently. A tool that can reliably handle up to 26mm cores reduces the need for multiple machines, saving both time and money.

Key Benefits of a 26mm Capacity

Makita HR Series Overview

Makita offers several models that incorporate the 26mm capability, each tailored to specific applications.

HR2670 New Makita Combination Hammer

The HR2670 combines hammer drilling and chiseling functions in a single unit. Its robust motor delivers up to 2,200 W of power, and the tool’s ergonomic design makes it suitable for prolonged use. The 26mm chuck allows users to tackle a wide range of core sizes without needing additional accessories.

HR2630 – A Compact Powerhouse

The HR2630 is a lighter, more compact option that still supports a 26mm maximum bit size. Its reduced weight makes it ideal for tight spaces and ceiling work. For a visual overview, you can watch the Makita HR2630 video demonstration on YouTube at https://youtu.be/W3FlXmnCQKI.

HR2621 D‑Handle SDS‑Plus Rotary Hammer

Designed for precision and control, the HR2621 features a D‑handle that enhances grip during heavy