News

When to replace a DTH drill bit? Check gauge wear, button flats, body wear, and shank damage. Use clear Keep, Regrind, or Replace criteria. Contact Kelleg for bit specifications.

Discover DTH drilling tool structure, working principles, and selection tips for efficient deep-hole drilling in hard rock.

Learn how pneumatic DTH hammers achieve efficient drilling through superior energy transfer, high penetration rates, and stable performance in hard rock.

Discover the advantages of pneumatic DTH hammers over traditional drilling, including higher efficiency, precision, and reliable performance in hard rock.

Learn how DTH hammers ensure precise, stable, and reliable pressure testing pipe installation for accurate monitoring in mining and geotechnical projects.

Discover how cluster-type circumferential DTH hammers improve pile driving efficiency and safety in low-headroom, confined construction sites.

Air reverse circulation (RC) drilling overview covering definition, technical overview, and technical characteristics.

Learn how DTH hammers are manufactured, from design and materials to heat treatment and quality control, and how construction impacts performance and service life.

Learn what the carburizing process is, its methods and benefits, and how carburizing improves hardness, wear resistance, and service life of rock drilling tools.

Discover how to select the right rock drilling tools for hydraulic tunneling jumbos to boost drilling efficiency, accuracy, and tool life in underground projects.

Discover the key factors affecting rock drilling performance and learn how to optimize efficiency, reduce costs, and extend tool service life.