Mungo 1690015 (MIT-BS-HO Series)

Professional Summary

• Manufacturer: Mungo (Switzerland)

• Model/Article: 1690015 (MIT-BS-HO Series)

• Type: Steel Wire Blow-Out Brush for Drill Hole Cleaning

• Quantity: 1 piece

Technical Specifications

• Compatible Drill Hole Diameters ($d_0$): Specifically sized for 14 mm and 16 mm drill holes.

• Total Brush Length ($L$): 300 mm (extended profile for deep-hole structural anchor cleaning).

• Material: Heavy-duty, high-tensile braided steel wire bristles twisted around a rigid steel core rod, completed with a manual handling tail.

Key Benefits & Technical Procedure

• Elimination of Bond-Breakers: During chemical anchoring, residual drill dust acts as a fatal dividing barrier. If left uncleaned, the resin attaches to the loose powder instead of the structural concrete, destroying load capacity. This brush scrapes away the stubborn compacted dust.

• Mechanical Keying Effect: The stiff steel bristles aggressively scratch and roughen the internal concrete borehole walls, substantially increasing the mechanical interlock and bonding efficiency of the cured injection resin.

• High-Wear Resistance: Unlike soft nylon alternative brushes, the premium industrial steel wire setup maintains its nominal outer diameter over repeated extractions against abrasive concrete aggregates and tough masonry.

Application:

Specified on construction sites to clean $\varnothing 14\text{ mm}$ and $\varnothing 16\text{ mm}$ boreholes drilled in solid concrete, natural stone, or solid brick. Used prior to injecting Mungo MIT chemical mortars for embedding M12 studs (using a 14 mm hole) or M14 studs/post-installed rebars (using a 16 mm hole).