DTH(down the hole)Bits

SHANDIKE has a comprehensive range of DTH drill bits to match all conceivable applications. Each bit is made from quality alloy steel, and has been precision machined to produce a perfect body, heat treated to the required hardness, given surface compression for fatigue resistance, and fitted with precision buttons manufactured in-house.

  • Raw material: premium quality nickel-alloy steel 23CrNi3Mo and YK 05 tungsten carbide
  • Shank types: DHD, COP,Mission, QL, SD etc.
  • Bit head shape: Drop Center Bit, Concave Face, Convex Face, Double Guage Face, Flat Face Bit.
  • Rock Applications: very hard and abrasive rock formation, medium-hard and homogeneous formation, soft rock and fissured rock formations
  • Over 15 years experience in rock drilling TooLS industry.
  • Shandike only uses high-quality raw materials.
  • We set up our products standard matched with world leading brands.
  • Advanced processing equipment extends the service life of products.

Selecting the Right Bit

SHANDIKE has a comprehensive range of DTH drill bits to match all conceivable applications. Each bit is made from quality alloy steel, and has been precision machined to produce a perfect body, heat treated to the required hardness, given surface compression for fatigue resistance, and fitted with precision buttons manufactured in-house. These are deigned for specific applications for all rock types, hardness’s and condition. Bit life and rate of penetration are the most important criteria in selecting the right bit for a particular application.

Bit Face Shape Selection

DTH BitsDrop Center
For high penetration rates in soft to medium hard and fissured rock formations.Low tomedium air pressures.Maximum hole deviation control.
DTH BitsConcave Face
The all-round application bit face specifically for medium hard and homogenerous rockformations.Good hole deviation control and good flushing capacity.
DTH BitsConvex Face
For high penetration rates in soft to medium-hard with low to medium air pressures.It isthe most resistance to steel wash,and may reduce the load and wear on the gaugebuttons,but poor hole deviation control.
DTH BitsDouble Gauge Face
This kind of face shape is suitable for fast penetration rates in medium to hard rockformations.Designed for high air pressures and good resistance to steel wash step gaugebit.
DTH BitsFlat Face
The Pineapple Bit can be dressed with ballistic buttons for use in soft to medium hard
DTH BitsPineapple Face
The Pineapple Bit can be dressed with ballistic buttons for use in soft to medium hardformations where fractured rock can be expected,or can be supplied with spherical buttonsfor hard and abrasive formations.

Technical Date

Carbide Button Shape Selection

Round ButtonSemi-Ballistic ButtonsBallistic ButtonFlat ButtonSharp Button

Product Codes

Product codes are a valuable tool to describe and identify the product. In the code structure we have tried to describe the product features with an alphanumeric system and not always 100% logical, but with the attached key you will be able to find the product you are looking for or alternative products.

Bit Shanks

Specification 

Specification of dth hammer button bits:Diameter: (mm)
1-2 inch low air pressure DTH bits Shank: BR1, BR2, DHD2.557/64/70/76/80/82/90
3 inch high Air pressure DHT bits Shank: BR3,DHD3.5,COP34,COP32,QL30,M30,IR3.585 / 90 / 95 / 100 / 105/110
4 inch high Air pressure DHT bits Shank:DHD340,COP44,M40,SD4,QL40105 / 110 / 115 / 120 / 127/130
5 inch high Air pressure DHT bits Shank:DHD350,COP54,M50,SD5,QL50133 / 140 / 146 / 152 / 165
6 inch high Air pressure DHT bits Shank:DHD360,M60,SD6,QL60,COP64152 / 165 / 178 / 190 / 203
8 inch high Air pressure DHT bits Shank:DHD380,COP84,M80,SD8,QL80195 / 203 / 216 / 254 / 305
10 inch high Air pressure DTH bits Shank:SD10, NUMA100254/270/279/295/305
12 inch high Air pressure DTH bits Shank:SD12,DHD1120,NUMA120,NUMA125305/330/343/356/368/381

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