The Simpson 11/16-in. Wire Hole-Cleaning Brush Head is engineered specifically for cleaning drilled holes prior to adhesive anchor installation. Designed by Simpson to work with SET-3G and AT-3G adhesives, this wire brush head promotes proper hole cleaning with fewer brush strokes at embedments up to 20 times the anchor diameter - helping ensure a reliable, code-compliant anchor installation from the start.

Key Features

• 11/16-in. brush head sized for 11/16-in. drilled holes - matches the hole diameter precisely so the brush makes full contact with the hole wall for thorough debris removal on every stroke.
• Designed for 5/8-in. anchors - paired to the correct anchor size, eliminating guesswork and helping ensure compatibility with your fastener selection.
• Compatible with SET-3G and AT-3G adhesives - engineered to work within these Simpson adhesive systems, supporting proper adhesive bonding and helping meet installation requirements.
• Fewer brush strokes at embedments up to 20 times the anchor diameter - reduces labor time in the field without compromising hole cleanliness, especially valuable on deep embedment installations.
• 5-in. usable brush length with extendable assembly - total usable length is determined by combining the brush, T-handle, and any optional extension, giving you flexibility to reach the required embedment depth.
• T-handle sold separately (model ETBS-TH) - allows you to source only the components you need and build the right assembly for each application.

Why This Product

• Built for the adhesive anchor process - this brush head is purpose-designed for pre-installation hole cleaning with Simpson SET-3G and AT-3G adhesive systems, meaning it is not a generic tool adapted for the job but a component matched to the system from the start.
• Efficient cleaning with fewer strokes - the brush geometry permits thorough hole cleaning at embedments up to 20 times the anchor diameter with fewer brush strokes, saving time on repetitive installations without sacrificing cleanliness.
• Flexible assembly for varying embedment depths - because usable length is calculated by combining the brush, handle, and optional extension, contractors can configure the assembly to suit different embedment depths rather than being locked into a fixed tool length.
• Precise fit for 5/8-in. anchor applications - the 11/16-in. brush head is sized specifically for holes drilled to accept 5/8-in. anchors, reducing the risk of using an undersized or oversized brush that could leave debris behind or fail to engage the hole wall properly.

Specifications

• Model Number: ETB68S
• Brush Head Size: 11/16 in.
• Hole Diameter: 11/16 in.
• Anchor / Bolt / Rod Diameter: 5/8 in.
• Usable Brush Length: 5 in.
• Material: Combination
• Packaging: Packs of 1 and Cartons of 25

Frequently Asked Questions

What adhesive systems is the ETB68S wire brush head compatible with?

The ETB68S is designed for use with Simpson Strong-Tie SET-3G and AT-3G adhesives to permit proper hole cleaning prior to adhesive anchor installation.

What anchor diameter is this brush head intended for?

This brush head is designed for use with 5/8-in. anchors and cleans 11/16-in. diameter drilled holes.

Is a handle included with the ETB68S brush head?

No. A T-handle (model ETBS-TH) is required for use with all sizes of standard wire brush and is sold separately. Extensions and brushes are also sold separately.

How is the total usable length of the brush assembly determined?

The ETB68S brush head has a 5-in. usable brush length. To determine the total usable length of your assembly, add the usable length of the brush to the usable length of the handle and any optional extension being used.

Related Products

• SET-3G
• AT-3G

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