Masonry drill bit Irwin 5 x 90 mm for concrete and stone

The Irwin masonry drill bit 5 x 90 mm is designed for drilling into concrete, brick and general masonry. The 5 mm solid cylindrical shank and 90 mm overall length make this bit suitable for use in compatible rotary hammers and drills. Its purpose-built cutting tip and flute geometry support efficient material removal, reduced clogging and straight drilling performance for construction, renovation and installation tasks.

Advantages

This masonry drill bit offers a compact size for precise holes in tight spaces while maintaining sufficient length for common installation depths. The solid cylindrical shank ensures a secure fit in standard chucks and the optimized tip geometry delivers accurate centring and quicker penetration into hard substrates. Flute design promotes consistent dust evacuation to help preserve cutting performance during repeated use.

Suitable for

• Drilling holes in concrete walls and floors for anchors and plugs
• Making openings in brick and blockwork for plumbing or electrical routes
• Installing fixtures and fittings where a 5 mm hole is required
• Renovation tasks that require controlled, straight drilling in masonry

Key specifications

• Diameter: 5 mm
• Total length: 90 mm
• Shank type: solid cylindrical
• Intended materials: concrete, brick, masonry
• Tip: purpose-built masonry cutting geometry
• Flute: designed for dust removal

How to use

Select a drill or rotary hammer compatible with a 5 mm shank and appropriate power for the substrate. Mark the drilling point and, if needed, use a centre punch for precise starting. Fit the bit securely into the chuck, set the tool to hammer mode for concrete or rotary mode if recommended by the tool manufacturer for softer masonry. Apply steady pressure and keep the drill perpendicular to the surface. Periodically withdraw the bit to clear dust and cool the tip; use water sparingly only if the tool and bit specification allow.

Usage recommendations

Use appropriate personal protective equipment such as safety glasses, hearing protection and dust mask when drilling masonry. For extended drilling sessions or harder concrete, allow the bit to cool intermittently and replace if wear reduces cutting performance.