We have earned our name as a renowned manufacturer and supplier of Spiral Auger Screw. It can easily drill through rocky soil with heavy-duty design and extra large pilot tips. Our diligent workforce uses the best quality mild steel and alloy steel, sourced from trusted vendors to manufacture this screw. This heavy-duty screw auger is designed for use with rotary hammer drills. This Spiral Auger Screw may be used to penetrate hard soils, asphalt and concrete. This screw offers a cleaner drill and prevents loss of teeth when reversing out of the hole using its shock lock system.