The M16 Hole Cleaning Brush is a purpose-made rotary brush for preparing 16 mm diameter drilled holes prior to the installation of mechanical or chemical anchors. Its primary use is to remove loose dust, drill swarf and fine debris from the bore so that resin, grout or mechanical fixings can achieve the correct bond and load performance.

Constructed with a twisted-wire core and high-tensile stainless steel bristles, the brush is corrosion resistant and suitable for repeated use in concrete, masonry and brick. The standard material specification for the core and wire is AISI 304 stainless steel; an AISI 316 stainless option is available for long-term use in marine or coastal environments where enhanced chloride resistance is required. The brush is sized for a nominal 16 mm hole diameter and is supplied as a free-spinning rotary brush that fits into a standard drill chuck or mandrel — it does not rely on a specialised drive head or thread on the brush itself.

When installing chemical anchors or post-installed mechanical anchors, correct hole cleaning is an essential part of compliance with accepted industry guidance. This brush is suitable for use as part of a cleaning procedure that supports BS 8539 (selection and installation of post-installed anchors) and for preparation prior to resin systems assessed against ETAG/ETA criteria. The twisted-wire construction gives positive bristle contact with the bore face to dislodge fine particulate which would otherwise reduce bond performance.

Typical applications include fixing through bolting, resin anchors, rebar dowelling and reinstatement anchors in civil engineering, building refurbishment, utilities and industrial maintenance. Contractors, installers and site engineers use the brush with a rotary drill to reach consistent cleaning results in overhead, horizontal or vertical bores. Key benefits are improved bond reliability for chemical anchors, durable corrosion resistance from stainless materials, and compatibility with standard 16 mm fixing systems and resin cartridges.

Duchy Fasteners stocks the RCCB16 M16 Hole Cleaning Brush in single items and multi-packs, and we hold alternative sizes and nylon-bristle variants for resin and mortar applications to suit site requirements. Contact us for availability and bulk pack options.