Description:DHD 3.5 Bits are available in diameter range between 85mm - 105mm).These bits have two
flushing holes and are available in three flavors: Flat, Convex and Concave

(1) Made from premium quality nickel-alloy steel 25SiMnCrNi2MoVA for increased durability and wear characteristics, and YK 05 tungsten carbide as same grade as internationally well-known brand
(2) Apply "hot (thermal) -insertion" processing procedure to insert the buttons as same as internationally well-known brand,
(4) Entire CNC processing procedure ensure the quality consistency and reliable.
(5) Military grade requirements of heat-treatment guarantee durability, Specific heat treatment standards and special "stress relief" processes ensure consistent performance.
(6) Designed for maximum performance and hole cleaning ability and high penetration rate.

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,

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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.

 Specification: