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DTH Button Bits Full Diameter Range 64mm 445mm Tungsten Carbide Inserts for Down The Hole Hammer Drilling
DTH Button Bits Full Diameter Range 64mm 445mm Tungsten Carbide Inserts for Down The Hole Hammer Drilling
Specifications
Brand Name :
ROSCHEN
Model Number :
DTH-FR-64445
Place of Origin :
Guangdong, China
Certification :
ISO 9001:2015
MOQ :
5 Pieces
Price :
USD 85-850 / Piece
Payment Terms :
T/T, L/C, Western Union
Supply Ability :
10000 Pieces per Month
Delivery Time :
5-7 working days for stock items, 20-30 days for production orders
Packaging Details :
Plywood case with foam cushioning, export-grade seaworthy packaging with humidity indicator
Diameter Range :
64mm - 445mm (2-1/2" - 17-1/2")
Shank Types :
DHD, COP, QL, SD, Mission, BR, CIR, NUMA
Face Design Options :
Flat, Concave, Convex, Drop Center
Button Shape Options :
Spherical, Ballistic, Parabolic, Semi-Ballistic
Working Pressure :
Low 0.5-0.7 MPa / Medium 1.0-1.5 MPa / High 1.5-3.0 MPa
Body Material :
Forged Nickel-Alloy Steel
Insert Material :
Premium Tungsten Carbide (YG8/YG11)
Heat Treatment :
Case Hardened with Stress Relief Process
Description

Full Diameter Range DTH Button Bits 64mm - 445mm

The ROSCHEN Full Range DTH Button Bits cover the most comprehensive diameter spectrum in down-the-hole drilling, from compact 64mm (2-1/2") bits to large-diameter 445mm (17-1/2") bits. This complete range enables a single-supplier solution for drilling contractors working across diverse projects at every scale.

Diameter Range Coverage

CategoryDiameter RangeTypical Hammer Series
Small Diameter64mm - 105mmBR1, BR2, BR3, DHD3.5, COP32
Medium Diameter110mm - 165mmDHD340, DHD350, DHD360, COP44, COP54, COP64, QL40, QL50, QL60, Mission40, Mission60
Large Diameter172mm - 254mmDHD380, COP84, QL80, SD8, Mission80
Extra Large Diameter254mm - 445mmNUMA100, NUMA120, NUMA125, DHD1120, SD12

Key Advantages

  • Complete Range: 64mm to 445mm covers quarry, mining, water well, geothermal, construction foundation and tunneling applications with a single trusted source
  • Premium Alloy Steel Body: Forged nickel-alloy steel undergoes precise heat treatment including carburizing, quenching and tempering for maximum fatigue resistance under high-frequency piston impact
  • Top-Grade Carbide Inserts: YG8 and YG11 tungsten carbide buttons engineered for specific rock hardness, with spherical, ballistic and parabolic profiles available
  • Multiple Face Designs: Flat face for hard rock, concave face for all-round drilling, convex face for high penetration rates, and drop center for soft to medium formations
  • Universal Shank Compatibility: Precision-machined splines match DHD, COP, QL, SD, Mission, BR, CIR and NUMA hammer shanks for seamless integration

Quality Assurance

Every bit undergoes CNC machining tolerance inspection, carbide button brazing integrity testing, and dimensional verification against original equipment specifications. ISO 9001:2015 certified manufacturing ensures consistent quality across all diameter ranges.

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DTH Button Bits Full Diameter Range 64mm 445mm Tungsten Carbide Inserts for Down The Hole Hammer Drilling

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Product Detail
Brand Name :
ROSCHEN
Model Number :
DTH-FR-64445
Place of Origin :
Guangdong, China
Certification :
ISO 9001:2015
MOQ :
5 Pieces
Price :
USD 85-850 / Piece
Contact Supplier
DTH Button Bits Full Diameter Range 64mm 445mm Tungsten Carbide Inserts for Down The Hole Hammer Drilling

ROSCHEN GROUP

Verified Supplier
12 Years
shanghai, shanghai
Since 1921
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter, Seller
Main Products :
Down The Hole Drilling, Drill Rod, Tricone Drill Bit
Total Annual :
5000-2000000
Employee Number :
100~500
Certification Level :
Verified Supplier
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