The Simpson Nylon Hole-Cleaning Brush for Rebar - 1 3/8 in. Hole Diameter is a purpose-built hole prep tool designed to thoroughly clean drilled concrete holes before adhesive anchor installation. Constructed with a nylon brush head, this brush is engineered specifically for deeper rebar embedment applications where complete removal of dust, debris, and loose material is critical to achieving a reliable adhesive bond. It is sized for 1 3/8 in. diameter holes and is compatible with Simpson Strong-Tie ET-3G and SET-3G adhesive systems, making it a practical fit for structural anchoring work that demands proper hole preparation.

Key Features

• Nylon brush head construction - cleans hole walls effectively without abrading or damaging the drilled surface, preserving hole integrity for proper adhesive adhesion
• 1 3/8 in. hole diameter sizing - matches holes drilled for #10 rebar anchors, eliminating guesswork and ensuring the brush makes full contact with the hole wall for thorough cleaning
• 8-inch useable length - reaches the full depth of deeper rebar embedment holes so no debris is left behind at the bottom where bond strength matters most
• Compatible with Simpson Strong-Tie ET-3G and SET-3G adhesive systems - integrates directly into approved installation workflows for these epoxy adhesives, supporting proper system performance
• Engineered for deeper embedment applications - longer useable length and stronger build handle the demands of structural rebar anchoring where standard brushes may fall short

Why This Product

• Matched to a specific hole and rebar size - purpose-sized for 1 3/8 in. holes and #10 rebar anchors, this brush fits the application precisely rather than being a generic tool adapted to the task, reducing the risk of inadequate cleaning coverage
• Supports adhesive system performance - designed for use with Simpson Strong-Tie ET-3G and SET-3G epoxy systems, making it the appropriate companion tool when hole prep is a required step in the adhesive anchor installation process
• Handles deeper embedment depths - the 8-inch useable length is specifically suited for rebar anchoring applications that require cleaning well below the concrete surface, where thorough prep throughout the full hole depth directly affects bond reliability
• Protects hole wall condition - nylon brush head material removes loose material and dust without gouging or widening the drilled hole, keeping the hole geometry consistent with what the adhesive manufacturer requires for rated performance

Specifications

• Model Number: ETB12R
• Brush Head Material: Nylon
• Hole Diameter (in.): 1 3/8
• Anchor Diameter / Rebar Size: #10
• Useable Length (in.): 8
• Packaging: Packs of 1 and Cartons of 25

Approved Applications

• Cleaning drilled holes prior to adhesive anchor installation
• Hole preparation for deeper rebar embedment applications
• Use with Simpson Strong-Tie ET-3G epoxy adhesive systems
• Use with Simpson Strong-Tie SET-3G high-strength epoxy adhesive systems

Frequently Asked Questions

What hole diameter is the ETB12R brush designed for?

The ETB12R is designed for cleaning holes with a 1 3/8" diameter, which corresponds to holes drilled for #10 rebar anchors.

What adhesives is this brush approved for use with?

This brush is designed for use with Simpson Strong-Tie ET-3G and SET-3G adhesives to ensure proper hole preparation before adhesive installation.

Why is proper hole cleaning important before adhesive installation?

Cleaning drilled holes removes dust, debris, and loose material that can compromise the bond between the adhesive and the concrete. Using the correct brush ensures the adhesive can achieve its full rated strength.

What is the useable length of the ETB12R brush?

The ETB12R has a useable length of 8 inches, making it well suited for deeper rebar embedment depths where thorough cleaning throughout the full hole depth is required.

Related Products

• ET-3G
• SET-3G

Note: Product dimensions and/or length may differ from picture. Please see the item description above for specifications.