Drill Bit Smart SDS Max 28 x 520/400 mm for Concrete and Masonry

Smart SDS Max drill bit 28 x 520/400 mm is made for rotary and hammer drilling in concrete, reinforced concrete and masonry. The bit fits SDS Max chucks and delivers a 520 mm overall length with 400 mm working length to reach deep anchor holes, dowel locations and through-routes for pipes and conduits. The geometry and shank type make it suitable for sustained heavy-duty use on construction sites and installation work where consistent performance and compatibility with SDS Max systems are required.

Advantages

The SDS Max shank ensures secure engagement and efficient impact transfer in compatible rotary-hammer tools. The 28 mm cutting diameter balances hole size for common anchors and sleeves while the 400 mm working length enables deeper drilling without changing bits. The bit is engineered for drilling in dense materials such as concrete and reinforced concrete and maintains stability during hammering operations. Its dimensions and steel construction provide a combination of reach, durability and machine compatibility for professional tasks.

Suitable for

• Drilling anchor and dowel holes in concrete and reinforced concrete
• Routing holes for pipes, conduits and sleeves in masonry walls
• Installation work requiring deep, straight holes with an SDS Max system
• Professional construction and refurbishment tasks with rotary-hammer tools

Key specifications

• Shank type: SDS Max compatible
• Cutting diameter: 28 mm
• Overall length: 520 mm
• Working (useful) length: 400 mm
• Intended materials: concrete, reinforced concrete, masonry
• Application: rotary and hammer drilling

How to use

Select a rotary-hammer tool with an SDS Max chuck and secure the drill bit in the tool according to the tool manufacturer's instructions. Mark the drilling point and start at low speed to establish the hole, then apply steady pressure while allowing the hammering action to advance the bit. Clear debris periodically from deep holes to maintain drilling efficiency and prevent overheating. Replace the bit when cutting performance visibly drops or if the head shows excessive wear or damage.

Usage recommendations

Use appropriate personal protective equipment, including eye protection, hearing protection and dust control measures. For reinforced concrete, confirm rebar locations before drilling. Match drill speed and feed pressure to the material and tool capabilities to optimise bit life and hole quality.