Drill Bit for Concrete STANLEY STA58608, 18 mm, triangular shank

STANLEY STA58608 is a drill bit for concrete with an 18 mm diameter and a triangular shank designed for use with compatible rotary and hammer drills. Engineered for drilling into concrete and masonry, this bit produces clean holes for anchors, plugs and through-fixings. The triangular shank ensures a secure fit in chucks and adapters that accept this profile, reducing slippage during heavy-duty drilling operations.

Advantages

The 18 mm cutting diameter provides a balance between material removal and control, enabling efficient hole-making for medium-sized anchors. The triangular shank gives improved torque transfer compared with smooth-shank bits, improving stability in rotary and percussion applications. The bit is produced to fit the demands of concrete work, offering consistent hole diameter and dependable penetration in common masonry substrates.

Suitable for

• Drilling anchor and plug holes in concrete
• Creating fixing points in masonry walls and blocks
• Installation of mechanical and chemical anchors
• Renovation and construction tasks requiring medium-diameter holes

Key specifications

• Material compatibility: concrete and common masonry
• Drill diameter: 18 mm
• Shank type: triangular shank for secure chuck engagement
• Intended use: rotary and hammer drilling with matching chuck interface

How to use

Secure the bit in a drill or adapter that accepts a triangular shank. Mark the drilling point and, if necessary, use a centre punch to prevent walking. Start drilling at low speed to establish the hole, then apply steady pressure and increase to the appropriate speed and percussion setting for concrete. Periodically withdraw the bit to clear dust and allow cooling. For accurate anchor installation, check hole depth and clean the hole of debris before inserting the anchor or plug.

Usage recommendations

Use appropriate personal protective equipment including eye and ear protection and a dust mask when drilling concrete. Match drill speed and hammer action to the substrate and avoid excessive lateral force to prevent bit breakage. For repeated heavy-duty use, verify that the drill and chuck are rated for the loads generated by 18 mm concrete drilling.