Drill bit MILWAUKEE SDS Max 18 x 540 mm, four-edge shank

MILWAUKEE SDS Max 18 x 540 mm drill bit with a four-edge shank is designed for use with SDS Max rotary hammers to drill deep holes in concrete and masonry. The 18 mm diameter and 540 mm overall length provide capacity for anchoring, through-holes, and service installations where penetrating thick structural elements or reaching reinforcement is required. The four-edge shank improves coupling stability in the tool chuck and reduces rotation play under impact loads.

Advantages

The four-edge shank design delivers secure engagement and reduced slippage in SDS Max hammer drills, increasing drilling stability and accuracy. The long 540 mm working length enables deeper reaches without extensions, saving time on setup during construction and renovation tasks. The bit geometry and material are optimized for efficient concrete and masonry drilling, helping maintain consistent cutting performance and wear resistance under typical jobsite conditions.

Suitable for

• Drilling deep holes for anchors and dowels in concrete and reinforced concrete
• Creating pass-through openings for pipes and conduits in masonry walls
• Installation and renovation tasks requiring long-reach drilling
• Professional construction and trade work with SDS Max rotary hammers

Key specifications

• Shank type: four-edge SDS Max-compatible shank for rotary hammers
• Diameter: 18 mm for medium-large anchor and service holes
• Overall length: 540 mm for extended reach deep drilling
• Material and tip geometry: engineered for concrete and masonry drilling

How to use

Install the drill bit into an SDS Max rotary hammer according to the tool manufacturer's instructions, ensuring the shank is fully seated and locked. Mark the drilling position and start at low speed to create a guide groove, then apply steady pressure and use hammer mode for concrete or masonry. Withdraw the bit periodically to clear dust and debris, and allow the drill to cool under heavy use. Use appropriate drilling speeds and feed pressure as recommended for 18 mm bits in dense concrete to avoid excessive wear.

Usage recommendations

Use personal protective equipment such as safety glasses, hearing protection and a dust mask when drilling. For reinforced concrete, verify reinforcement location before drilling and consider using lubrication or coolant only if specified by the tool or bit manufacturer. Replace the bit if cutting performance deteriorates or if visible damage appears on the tip or flute.