Drill Bit SDS‑MAX Makita 24 x 1360 x 1500 mm, 6‑cut (B-30221)

Makita SDS‑MAX drill bit with a 24 mm diameter, 1360 mm working length and 1500 mm total length designed for heavy rotary and hammer drilling in concrete and masonry. The 6‑cut tip geometry improves cutting efficiency and debris removal when used with SDS‑MAX compatible breakers and rotary hammers. This long‑reach bit is intended for deep hole drilling in construction, installation and reinforcement tasks where a robust, precise drilling tool is required.

Advantages

The six‑cut tip design provides stable centring, reduced vibration and faster penetration in hard materials. A long working length of 1360 mm allows drilling deep openings without frequent bit changes, while the 1500 mm total length ensures secure engagement with the tool chuck. The SDS‑MAX shank delivers reliable coupling with compatible rotary hammers and breakers, enabling efficient power transfer and consistent performance under heavy loads.

Suitable for

• Deep anchoring and dowel installation in concrete and masonry
• Through‑holes for plumbing and electrical installations
• Reinforcement bar clearance and preparatory drilling on construction sites
• Heavy‑duty demolition and renovation projects requiring long‑reach drilling

Key specifications

• Diameter: 24 mm
• Working length (useful length): 1360 mm
• Total length: 1500 mm
• Tip design: 6‑cut (six‑edge) geometry for improved cutting and dust removal
• Shank type: SDS‑MAX compatible
• Intended material: concrete and masonry

How to use

Install the bit into an SDS‑MAX compatible rotary hammer or breaker following the tool manufacturer’s instructions until it locks securely. Select the hammer or rotary mode appropriate for concrete drilling and set the drill speed according to material hardness. Use steady axial pressure without forcing the bit; allow the tool to perform the cutting action. Periodically withdraw the bit to clear dust and debris during deep drilling to maintain drilling efficiency and prevent overheating.

Usage recommendations

Wear appropriate personal protective equipment, including eye protection, hearing protection and dust mask or respirator. For reinforced concrete, use lower speeds and increased percussion to avoid excessive wear; if encountering rebar, stop and assess the correct method for crossing or avoiding reinforcement. Store the bit dry and inspect the cutting edges before use to ensure safe and effective operation.