Down-the-hole drilling

At Starockdrill, our DTH drill bits are meticulously crafted based on customer feedback and decades of rock drilling experience. Each drill bit is custom-tailored to deliver optimal results even in the harshest drilling conditions. Using computer-aided design and precision CNC machining, we ensure flawless body construction. Multiple heat treatment processes enhance hardness, while surface reinforcement improves fatigue resistance. These factors make our drill bits durable, efficient, and capable of achieving superior drilling performance.

We select high-performance steel and alloys for our drill bits, embedded with premium-grade alloy teeth to ensure efficient penetration. To meet specific customer requirements, we utilize YK05 tungsten carbide alloy, renowned for its exceptional hardness and wear resistance. Our carbide alloy sizes, shapes, and grades can be customized to cater to individual needs.

• Compatibility: Starockdrill drill bits are compatible with all tail designs, offering versatility to meet diverse customer needs.
• Swift Delivery: With an extensive inventory, we promptly respond to customer demands and ensure lightning-fast shipments, ensuring higher customer satisfaction.

Our BR series drill bits are compatible with original BR tail designs, offering a mid to high-pressure drilling solution. Key specifications include:

	BR2 DTH Drill Bit Bit diameter: 76mm-100mm
	BR3 DTH Drill Bit Bit diameter: 85mm-115mm
	BR4 DTH Drill Bit Bit diameter: 102mm-152mm

Features

• 70% price with 97% efficiency compared to original BR tail drill bits.
• Premium-grade drill steel and Italian heat treatment processes guarantee product quality.
• YK05 tungsten carbide ensures superior wear and pressure resistance.
• Customization available for special model specifications.

To meet the demands of customers using low-pressure air compressors and drills, Starockdrill produces low-pressure DTH drill bits.

	CIR90 DTH Drill Bit Bit diameter: 90mm-120mm
	CIR110 DTH Drill Bit Bit diameter: 110mm-145mm

Features

• Independent production and control over every manufacturing process, supporting personalized customer requirements.
• Low energy consumption and high efficiency provide a competitive advantage in the low-pressure market.
• Stabilized 25Si2MnCrNi2Mov material ensures enhanced durability and stability.
• T6 alloy teeth guarantee optimal drilling footage and speed.

The Cop series includes CopRod (compatible with SmartRoc drilling machine by Atlas Epiroc) and conventional DTH drill bits.
Drill rig model: SmartROC C50, hole diameter: 90-102mm
Drill rig model: SamrtROC CL, hole diameter: 102-140mm

	Cop32 DTH Drill Bit Bit diameter: 85mm-100mm
	Cop34 DTH Drill Bit Bit diameter: 90mm-105mm
	Cop42 DTH Drill Bit Bit diameter: 105mm-130mm
	Cop44Gold DTH Drill Bit Bit diameter: 105mm-130mm
	Cop44 DTH Drill Bit Bit diameter: 105mm-130mm
	Cop54 DTH Drill Bit Bit diameter: 140mm-165mm
	Cop64 DTH Drill Bit Bit diameter: 152mm-216mm
	Cop66 DTH Drill Bit Bit diameter: 152mm-216mm
	Cop84 DTH Drill Bit Bit diameter: 203mm-305mm

Features

• Starockdrill offers various drill head sizes that can replace original products entirely.
• Additional heat treatment process and improved carburization enhance wear resistance.
• Premium-grade drill steel and tungsten carbide alloy teeth from leading domestic brands ensure stability.
• Private labeling available for distributors to enhance brand visibility.
• Customizable alloy teeth shape and quantity based on customer requirements.

The DHD series comprises two types: with and without exhaust tubes.
Drill bits with exhaust tubes offer stable air pressure and smoother drilling performance.
Drill bits without exhaust tubes provide faster drilling speed and higher efficiency.

	DHD3.5A/DHD3.5 DTH Drill Bit Bit diameter: 90mm-105mm
	DHD340A/DHD340 DTH Drill Bit Bit diameter: 105mm-130mm
	DHD350A/DHD350 DTH Drill Bit Bit diameter: 140mm-165mm
	DHD360A/DHD360 DTH Drill Bit Bit diameter: 152mm-216mm
	DHD380A/DHD380 DTH Drill Bit Bit diameter: 203mm-305mm
	DHD1120A/DHD1120 DTH Drill Bit Bit diameter: 311mm-560mm

Note: model having "A" stands for with exhaust tube.

Features

• Starockdrill offers drill bits in every shank size, providing seamless compatibility with original products.
• Additional heat treatment process and improved carburizing techniques enhance the durability of our drill bits.
• Premium alloy teeth and top-quality drill steel from renowned domestic brands ensure consistent and reliable performance.
• We offer private labeling options for our authorized distributors, boosting their brand recognition.
• Customizable alloy tooth shapes and quantities allow us to meet individual customer requirements.

The Mach series includes two available models, Mach33 and Mach44.

Features

• Starockdrill offers drill bits in every shank size, providing seamless compatibility with original products.
• Additional heat treatment process and improved carburizing techniques enhance the durability of our drill bits.
• Premium alloy teeth and top-quality drill steel from renowned domestic brands ensure consistent and reliable performance.
• We offer private labeling options for our authorized distributors, boosting their brand recognition.
• Customizable alloy tooth shapes and quantities allow us to meet individual customer requirements.

Mission series DTH drill bits, pioneered by Sandvik, are designed for high-speed drilling, ensuring rapid drilling and efficient sludge discharge. Widely used in mining and water well drilling, our Mission series incorporates our unique carburizing process to enhance performance and stability.

Features

• Starockdrill offers drill bits in every shank size, providing seamless compatibility with original products.
• Additional heat treatment process and improved carburizing techniques enhance the durability of our drill bits.
• Premium alloy teeth and top-quality drill steel from renowned domestic brands ensure consistent and reliable performance.
• We offer private labeling options for our authorized distributors, boosting their brand recognition.
• Customizable alloy tooth shapes and quantities allow us to meet individual customer requirements.
• Concave design with enhanced drainage and sludge discharge for higher drilling efficiency

Numa series DTH drill bits are designed for large-diameter drilling applications such as piling and foundation work. With extensive experience in large-size machining, Starockdrill is a leading producer of N125 and N180 drill tools in China. Our prolonged carburizing process ensures optimal performance and extended lifespan.

Features

• Starockdrill offers drill bits in every shank size, providing seamless compatibility with original products.
• Additional heat treatment process and improved carburizing techniques enhance the durability of our drill bits.
• Premium alloy teeth and top-quality drill steel from renowned domestic brands ensure consistent and reliable performance.
• We offer private labeling options for our authorized distributors, boosting their brand recognition.
• Customizable alloy tooth shapes and quantities allow us to meet individual customer requirements.

The QL series DTH drill bits feature an exhaust tube design that guarantees stable airflow, resulting in continuous drilling. At Starockdrill, whether it's the QL series impactor or QL series DTH drill bits, we have implemented our own heat treatment process to deliver exceptional products at an affordable price.

Features

• Starockdrill offers drill bits in every shank size, providing seamless compatibility with original products.
• Additional heat treatment process and improved carburizing techniques enhance the durability of our drill bits.
• Premium alloy teeth and top-quality drill steel from renowned domestic brands ensure consistent and reliable performance.
• We offer private labeling options for our authorized distributors, boosting their brand recognition.
• Customizable alloy tooth shapes and quantities allow us to meet individual customer requirements.

The SD series DTH drill bits feature an exhaust tube design that guarantees stable airflow, resulting in continuous drilling. At Starockdrill, whether it's the SD series hammers or SD series DTH drill bits, we have implemented our own heat treatment process to deliver exceptional products at an affordable price.

Features

• Starockdrill offers drill bits in every shank size, providing seamless compatibility with original products.
• Additional heat treatment process and improved carburizing techniques enhance the durability of our drill bits.
• Premium alloy teeth and top-quality drill steel from renowned domestic brands ensure consistent and reliable performance.
• We offer private labeling options for our authorized distributors, boosting their brand recognition.
• Customizable alloy tooth shapes and quantities allow us to meet individual customer requirements.
• Starockdrill also offers hammers and drill bits without exhaust tubes based on customer demands.

Starockdrill series DTH drill bits are exclusively designed to match our own hammers. As a company with strong research and development capabilities, we have developed patented products that meet market demands.

Features

• Independently developed products, providing additional exhaust tube sales opportunities for suppliers.
• In-house production with unique heat treatment processes, ensuring quality control.
• Utilizes high-quality steel for drill tools to guarantee stable performance
• Low consumption with fast drilling speed and high efficiency