The Simpson 7/8-in. Wire Hole-Cleaning Brush Head from Simpson is engineered for cleaning drilled holes prior to adhesive anchor installation. Designed specifically for use with Simpson SET-3G and AT-3G adhesives, this wire brush head permits proper hole cleaning with fewer brush strokes at embedments up to 20 times the anchor diameter - making it a reliable choice for anchoring applications requiring 3/4-in. anchors or #6 rebar in 7/8-in. drilled holes.

Key Features

• 7/8-in. brush head for 7/8-in. hole diameter - precisely sized to fit the drilled hole, ensuring thorough contact with hole walls for effective debris removal before adhesive placement
• Compatible with 3/4-in. anchor or #6 rebar size - matched to the correct anchor and rebar dimensions so installers can confidently select the right brush without guesswork
• 5-in. useable brush length - provides sufficient reach into the hole; to obtain total usable length, add the usable length of the brush, handle, and optional extension if used
• Fewer brush strokes at embedments up to 20 times the anchor diameter - reduces labor effort and speeds up hole preparation without sacrificing cleaning performance
• T-handle required for operation (model ETBS-TH, sold separately) - gives installers flexibility to source only the components they need and pair this brush head with compatible handles and extensions already on hand

Why This Product

• Engineered for SET-3G and AT-3G adhesive systems - this brush head is specifically designed to work within the Simpson adhesive anchor system, helping ensure hole preparation meets the standards those adhesives require for a reliable installation
• Cleans effectively with fewer strokes - the combination-material brush construction permits proper hole cleaning at embedments up to 20 times the anchor diameter with reduced effort, saving time on each drilled hole
• Correct sizing eliminates compatibility uncertainty - with a 7/8-in. brush head sized for a 7/8-in. hole and a 3/4-in. anchor or #6 rebar, this brush takes the guesswork out of matching cleaning tools to anchor hardware
• Modular, component-based design - sold as a brush head only, it integrates with T-handles and optional extensions so installers can build out or replace only the parts they need rather than purchasing a complete assembly each time

Specifications

• MPN: ETB87S
• Brush Head Size: 7/8 in.
• Hole Diameter: 7/8 in.
• Anchor Diameter / Rebar Size: 3/4 in., #6
• Useable Brush Length: 5 in.
• Material: Combination
• Packaging: Packs of 1 and Cartons of 25

Frequently Asked Questions

What adhesives is the ETB87S wire brush head designed for use with?

The ETB87S is specifically 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 and rebar size is this brush head compatible with?

This 7/8-in. wire brush head is compatible with a 3/4-in. anchor diameter or #6 rebar size, and is intended for use in a 7/8-in. drilled hole.

Is a T-handle included with the ETB87S brush head?

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

What is the useable brush length of the ETB87S?

The ETB87S has a 5-in. useable brush length. To obtain the total usable length, add the usable length of the brush, handle, and any optional extension 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.