Drill Bit Makita SDS‑MAX 12×540 mm

The Makita SDS‑MAX 12×540 mm drill bit is designed for use with rotary hammers that accept SDS‑MAX shanks. With a 12 mm cutting diameter and a 540 mm overall length, this long-reach bit is intended for deep drilling in concrete and masonry where extended penetration is required. It is suitable for making through-holes, installing anchors and drilling in reinforced concrete or brickwork when standard-length bits do not reach.

Advantages

This SDS‑MAX drill bit offers a combination of extended length and a narrow 12 mm diameter to reach deep drilling points while maintaining compatibility with SDS‑MAX rotary hammers. The bit is engineered for stable drilling performance in heavy-duty materials, delivering efficient dust removal along the flute and consistent hole dimensions. Its construction provides adequate stiffness for long-reach applications and reduces bit wobble during operation.

Suitable for

• Drilling through-holes for cable routing and piping in concrete or brick
• Installing chemical or mechanical anchors in deep sockets
• Construction tasks requiring extended-reach drilling in reinforced concrete
• Pre-drilling for larger fastening systems where alignment and depth are critical

Key specifications

• Shank type: SDS‑MAX compatible shank for rotary hammers
• Cutting diameter: 12 mm
• Overall length: 540 mm (extended-reach design)
• Intended material: concrete and masonry, including reinforced concrete and brick
• Application type: rotary percussion drilling with hammer drills

How to use

Mount the bit in an SDS‑MAX compatible rotary hammer according to the tool manufacturer's instructions and ensure the bit is fully seated and locked. Use the appropriate hammer-drill mode for concrete and masonry, applying steady axial pressure while allowing the tool to do the cutting. For deep holes, withdraw the bit periodically to clear dust and debris from the hole and the flute. Observe recommended drilling speeds and cooling intervals from the rotary hammer manufacturer to avoid overheating and premature wear.

Usage recommendations

Use appropriate personal protective equipment including eye protection, hearing protection and dust extraction or a mask when drilling in concrete. For accurate anchor installation, verify hole depth and diameter before placing anchors and clean the hole thoroughly to ensure proper bonding or mechanical engagement.