Drill Bit Makita SDS‑MAX 15 x 400 x 540 mm, 6‑cut (B-05393)

Rotary drill bit for SDS‑MAX chucks designed by Makita, with a 15 mm diameter, 400 mm working length and 540 mm overall length. The six‑cut tip geometry improves material removal and provides stable drilling performance in concrete and masonry. Intended for use with SDS‑MAX rotary hammers when deeper boreholes and predictable chip evacuation are required.

Advantages

The six‑cut tip reduces binding and enhances centring, enabling straighter holes and more consistent progress when drilling through reinforced concrete, brick and block. The long 400 mm working length allows making deep boreholes without switching to extensions, while the robust shank and flute design maintain durability under repetitive impact drilling. The tool offers controlled dust output compared with standard single‑cut designs, supporting cleaner worksite conditions.

Suitable for

• Drilling deep holes in concrete and masonry
• Installation of anchor rods and through‑holes for rebar inspection
• Rotary hammer applications with SDS‑MAX chucks
• Construction, renovation and utility work requiring stable, long‑reach drilling

Key specifications

• Shank type: SDS‑MAX compatible
• Diameter: 15 mm
• Working length: 400 mm
• Overall length: 540 mm
• Tip: six‑cut geometry for efficient material removal
• Material application: concrete, reinforced concrete, brick and block

How to use

Fit the SDS‑MAX shank securely into the rotary hammer chuck and ensure the tool is locked before starting. Use the rotary hammer in hammer‑drilling mode and apply steady, moderate pressure — avoid forcing the bit to preserve tip geometry and extend service life. Withdraw the bit periodically to clear debris when drilling deep holes. Wear appropriate protective equipment, including eye protection, hearing protection and a dust mask, and follow the rotary hammer manufacturer’s operating instructions.

Usage recommendations

For best results, select appropriate drill speed and hammer settings for concrete; allow the six‑cut tip to work with consistent feed pressure rather than aggressive force. When drilling reinforced sections, pause occasionally and withdraw the bit to remove accumulated chips. Store the bit in a protective case or holder to prevent damage to the tip after use.