Drill bit Makita SDS‑MAX 14 mm for concrete, model MA‑D‑33906

Makita SDS‑MAX 14 mm concrete drill bit MA‑D‑33906 is a purpose‑built rotary hammer accessory for drilling in concrete, masonry and stone. The bit features a carbide tip and an SDS‑MAX shank for secure fitting in compatible rotary hammers. It is designed to combine durability and drilling efficiency for applications such as anchor installation, through‑holes and demolition work where reliable penetration of reinforced and non‑reinforced concrete is required.

Advantages

The carbide‑tipped cutting edge maintains sharpness during repeated use and improves bore accuracy in dense materials. The SDS‑MAX shank ensures positive engagement with rotary hammer chucks, minimising slippage and allowing rapid bit changes. The bit’s hardened steel body and balanced design reduce breakage risk and vibration transfer, supporting longer tool life and consistent drilling performance.

Suitable for

• Drilling anchors and fixing points in reinforced and non‑reinforced concrete
• Making through‑holes for cable and pipe routing
• Light demolition and breakout pilot holes in masonry and stone
• Construction and installation tasks requiring SDS‑MAX rotary hammer use

Key specifications

• Drill diameter: 14 mm
• Shank type: SDS‑MAX
• Tip material: carbide‑tipped cutting head
• Application materials: reinforced concrete, non‑reinforced concrete, masonry, stone
• Compatible tool type: rotary hammer with SDS‑MAX chuck

How to use

Select a rotary hammer with an SDS‑MAX chuck and ensure the tool is switched off before inserting the bit. Insert the shank fully into the chuck until it locks; follow the rotary hammer manufacturer’s instructions for secure installation. Use appropriate hammer drilling mode and apply steady forward pressure without forcing the bit; allow the carbide tip to cut at its own pace. Withdraw the bit periodically to clear debris and reduce heat build‑up. For through‑holes, monitor depth and align the bit to maintain a straight bore.

Usage recommendations

Always wear appropriate personal protective equipment including safety glasses, hearing protection and dust mask when drilling concrete. Use lubricant or compressed air to clear dust where recommended by the tool manufacturer, and choose correct drill speed and hammering settings for material hardness. Inspect the bit before use for damage and replace it if the carbide tip is chipped or the shank is bent.