HD Series Top hammer drill bits

Top hammer drill bits

Minerza HD Series

Bit diameter: 54–140 mm (all thread types)

Carbide type: PowerCarbide-grade equivalents

Application: Bench, quarrying, and long-hole production drilling

Taper: 7°, 11°, 12°

Description:

The Minerza HD Series is built for the most demanding production and quarrying environments, where durability and reliability are essential. These heavy-duty drill bits feature a reinforced gauge row and multi-angle button configuration for superior wear resistance and penetration rate. Enhanced flushing capacity ensures efficient debris removal and stable performance in hard rock formations. Manufactured with advanced carbide grades, including gradient and self-hardening types, the HD Series offers up to twice the service life of standard bits — minimizing downtime, reducing total drilling cost, and improving sustainability.