Drill Bit Makita SDS‑Max 45×1160×13000 mm, 6‑cut MAXI (B-30433)

Makita SDS‑Max 45×1160×13000 mm, 6‑cut MAXI (B-30433) is a heavy‑duty rotary drill bit designed for use with SDS‑Max rotary hammers. With a 45 mm diameter and an effective working length suitable for deep boreholes, this 6‑cut MAXI geometry provides stable cutting performance in concrete, masonry and natural stone. The shank and flute design are optimized for efficient debris removal during long drilling operations, making the bit appropriate for professional construction and renovation work that requires a long reach and consistent drilling accuracy.

Advantages

The 6‑cut MAXI tip offers improved centring and steady bite into hard materials, reducing wander at the start of drilling and enhancing hole straightness. The SDS‑Max connection ensures secure tool-to-bit engagement for heavy impact loads, while the extended length delivers access to deep drilling locations without the need for extensions. The flute profile and geometry are intended to evacuate dust and debris efficiently, supporting faster drilling progress and reducing clogging under continuous use.

Suitable for

• Drilling deep anchor or through holes in reinforced concrete
• Creating service shafts and long boreholes in masonry and stone
• Professional demolition and renovation tasks requiring long‑reach drilling
• Applications where stable centring and reduced re‑drilling are important

Key specifications

• Diameter: 45 mm
• Working length: 1160 mm
• Total length: 13000 mm
• Tip geometry: 6‑cut (6‑edge) MAXI
• Connection type: SDS‑Max shank
• Material application: concrete, masonry, natural stone

How to use

Install the drill bit into an SDS‑Max compatible rotary hammer following the tool manufacturer's instructions, ensuring the shank is fully engaged and locked. Position the bit perpendicular to the drilling surface and start at low speed to establish a precise starter position, then increase to the recommended operating speed and impact setting for the material. Apply steady axial pressure without excessive force to allow the tip geometry to cut efficiently; periodically withdraw the bit to clear debris when drilling deep holes. Use appropriate personal protective equipment and follow on‑site safety procedures.

Usage recommendations

For long service life, avoid overheating the bit by using correct impact and rotation settings for the material. Regularly inspect the tip and flute for wear, and replace the bit if cutting performance declines significantly. Use water suppression only if compatible with the rotary hammer and local safety guidelines.