9/16″ Backer Rod – 500 ct. Plugs for 9/16″ drill holes por | ago 2, 2026For 9/16″ drilled holes. These Plugs WILL NOT fall through 9/16″ holes. After pesticide injection, the technician inserts a POLY PLUG in the hole. Countersinks it with the T-Handle Tool, and seals it with patch material.
