Irwin concrete drill bit 20.0 mm x 600 mm Speedhammer Plus

The Irwin concrete drill bit 20.0 mm x 600 mm Speedhammer Plus is engineered for drilling deep holes in concrete and masonry. With a 20 mm carbide-tipped cutting head and a long 600 mm hardened steel shank, this drill bit is intended for use with hammer drills and rotary hammers to create clean, accurate holes for anchors, through-holes, and service penetrations in reinforced and non-reinforced concrete.

Advantages

The Speedhammer Plus cutting tip uses a precision-ground carbide design to improve drilling speed and extend tool life while maintaining consistent hole diameter. The extended 600 mm length allows access to deep fixtures and through-floor drilling without jointed extensions, and the hardened shank resists bending during heavy-duty use. Overall design reduces clogging and improves dust evacuation when used with appropriate drill modes, delivering reliable performance on successive holes.

Suitable for

• Drilling deep anchor holes in concrete and masonry
• Through-holes for pipes and conduits in floors and walls
• Renovation and installation work requiring long-reach drilling
• Professional construction and trade applications with rotary hammers or hammer drills

Key specifications

• Diameter: 20.0 mm
• Overall length: 600 mm
• Cutting head: carbide-tipped for concrete
• Shaft material: hardened steel shank
• Suitable tool types: hammer drills and rotary hammers

How to use

Select a compatible hammer drill or rotary hammer with the correct chuck or SDS interface for this bit. Mark the drilling position and start at low speed to establish the hole, then apply steady pressure and use hammer mode for concrete. Withdraw the bit periodically to clear debris and reduce heat build-up. For through-holes, ensure proper support and alignment before completing the hole. Use appropriate personal protective equipment including eye protection, hearing protection and a dust mask or dust extraction where required.

Usage recommendations

Please match drill speed, feed pressure and hammer setting to the base material; excessive sideways force or incorrect tool settings may reduce bit life. For best results in reinforced concrete, use a drill with sufficient impact energy and retract frequently to clear cuttings and prevent binding.