Drill bit Makita SDS‑Max 42×1160×1300 mm MAXI 6‑blade (B-30374)

Makita SDS‑Max drill bit MAXI 6‑blade with a 42 mm cutting diameter and overall lengths of 1160 mm and 1300 mm is designed for heavy‑duty drilling in concrete and masonry using SDS‑Max rotary hammers. The six‑blade geometry and reinforced shank enable efficient chiselling and fast removal of material when creating large‑diameter anchor or duct holes on construction and renovation sites. This bit is intended for rotary and rotary‑hammer drilling modes compatible with SDS‑Max tool interfaces.

Advantages

The MAXI 6‑blade tip provides stable guidance and balanced cutting action, reducing bit walk and improving hole roundness during deep drilling. Its multi‑blade design disperses impact forces and helps evacuate debris more quickly than single‑flute designs, supporting faster progress in hard concrete. The robust shank and blade assembly are made to withstand repeated hammering and heavy loads common in professional construction use.

Suitable for

• Drilling large‑diameter anchor and fixing holes in reinforced concrete and masonry
• Creating passage holes for ducts and conduits in renovation and installation work
• Heavy‑duty construction tasks requiring long‑reach drilling

Key specifications

• Cutting diameter: 42 mm
• Available overall lengths: 1160 mm and 1300 mm
• SDS‑Max shank type for compatibility with SDS‑Max rotary hammers
• Six‑blade tip geometry for improved debris removal and stability
• Intended material: reinforced concrete and masonry

How to use

Fit the SDS‑Max shank securely into the rotary hammer chuck according to the tool manufacturer's instructions. Use the rotary‑hammer mode for drilling in concrete; apply steady axial pressure without forcing the tool, allowing the drill bit's design to remove material effectively. For long‑reach drilling, maintain tool alignment and periodically withdraw the bit to clear dust and debris for better cooling and cutting performance. Inspect the bit for wear before use and replace if cutting edges are damaged.

Usage recommendations

Use appropriate personal protective equipment (eye protection, hearing protection, dust mask) and follow the rotary hammer manufacturer's safety guidelines. For extended drilling sessions, remove dust frequently and consider using water suppression or a dust extraction system where suitable and safe for the tool and environment.