DTH Drill Bits are produced from premium quality nickel-alloy steel for increased durability and wear characteristics. Specific heat treatment standards and special "stress relief" processes ensure 
consistent  performance. 






DTH hammer bits are designed for maximum performance and hole cleaning ability and high penetration rate. Available series of DTH hammer:
(1) high pressure
SD series hammer: SD 5, SD 6, SD 8, SD 12.
QL series hammer: QL 30, QL 40, QL 50, QL 60, QL 80.
DHD series hammers: DHD 3.5, DHD 340. DHD 350, DHD 360, DHD380.
Mission series hammers: M30, M40, M50, M60, M80.
Cop series hammers: Cop 32/34, Cop 42/44, Cop 54/64.
NUMA series hammers: Numa100, Numa120, Numa125
(2) medium pressure
BR Series: BR1, BR2, BR3
HD25A
(3) low air pressure:
CIR Series: CIR55, CIR60, CIR70, CIR80, CIR90, CIR100, CIR110, CIR150, CIR170, etc.
J Series: J60C, J70C, J80B, J100B, J150B, J170B, J200B, etc.
 
DHD350-185mm Rock DTH Hammer Bits for Mining

Non shank and Carbide broken,
High ( fast , good ) penetration rate
Maximum hole deviation control,
 
soft rock like sand stone, drilling 1500 meter,
Hard rock like granite, drilling 1000 meter,
high abrarsive like lime stone drilling 600meter
 
Dome buttons as gauge buttons of DTH bits suitable  for very abrasive and very hard formations,
Parabolic ( semi-ballistic buttons ) as gauge buttons and front buttons of DTH bits , suitable for medium abrasive and hard formation,
Ballistic button as front buttons of DTH bits, suitable for medium abrasive and medium hard formation,
.
ProDrill offers a comprehensive range of high performance DTH hammers, DTH hammer bits, and accessories for use in the mining, construction, geothermal, and rotary drilling industries.
DTH hammers are available in sizes from 2" to 20" from the industries leading manufacturer's including Mincon®, Sandvik®, Drill King®, Rockmore®, and more.
 
DTH hammer bits are available in sizes from 2" to 36", with all shanks, multiple head/face designs, and with a variety of tungsten carbide button styles to suit a wide variety of drilling conditions.
DTH accessories, including hammer oil andlube, grinding and sharpening tools, adapter, subs, shock absorbers, and more, are available to complement our DTH product offering.
 
Prodrilling factory is equiped with elecro-hydraulic forging machine, metal processing line,  heat treatment line, numerical control machines, which compose a complete production liine, and CNC machines are largely used in the whole manufacturiing process to insure every critical control point of quality.

 Ps.: Others
1. Besides, we also sell other Stone drilling tools:
1) Rock drill:
Handheld rock Drill: Y10, Y18, Y20, Y24, Y26, TY24C, etc;
Airleg rock drill: YT24, YT28, etc;
2) Drill rod: Taper rod (hex. 22 * 108mm)
3) Drill bit: Taper button bit, Taper chisel bit, Taper cross bit
4) Splitter: Handheld stone splitter (or shims and wedges or plug and feather), G10 pneumatic splitter
5) Breaker: G10, TPB, etc;

2. Advantages:
Compared with the oversea brands, our advantages are bellowing:
a. Our products can match over 95% against the original products
b. Price are competitive against the famous brands and best quality against the small factory
 
3. About Us:
1.    Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.
2.    We have advanced technology and equipment.
3.    Our technician has more than 13 year's professional working experience.
4.    Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA, Canada, Australia, Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.

4. Welcome your question and inquiry