What is the proper way to set a wedge anchor (drop-in) in concrete without blowing out the hole

Plain-English answer

1. Drill the hole at a 90-degree angle to the concrete deck using the correct depth-stop on your hammer drill. 2. Blow the concrete dust completely out of the hole (dust left inside prevents the anchor from setting correctly). 3. Insert the drop-in anchor flush with or slightly below the concrete surface. 4. Insert the setting tool into the anchor and strike it hard with a hammer until the shoulder of the setting tool sits flush against the top of the anchor. Never strike the anchor threads directly.

Field checklist

• Drill the hole at a 90-degree angle to the concrete deck using the correct depth-stop on your hammer drill.
• Blow the concrete dust completely out of the hole (dust left inside prevents the anchor from setting correctly).
• Insert the drop-in anchor flush with or slightly below the concrete surface.
• Insert the setting tool into the anchor and strike it hard with a hammer until the shoulder of the setting tool sits flush against the top of the anchor. Never strike the anchor...

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Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.

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