H-Thread extension steel is available in limited lengths. It provides a quick short extension of H-Thread construction drill steel. For production drilling at deep depths, consider our wide range of rope thread.

• Configurations: H-Thread, 7/8″ Hex Diameter, 24″ or 48″ lengths

This sits within our wider drill steel & extension rods selection and pair it with the matching bits. The drill steel adapters guide walks through choosing the right one. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.