DHD350R Shank

Mincon has a comprehensive range of DTH Drill Bits to suit all types of applications and drilling processes. There are a number of different drill bit head designs for the DHD350R shank and Mincon Sales Technicians can work with you to determine the ideal design for your application.

Key Features and Benefits

  • Manufactured from premium alloy steels. 
  • Proprietary heat treatment processes to provide maximum service life and durability.
  • Compressive residual stress layer added to improve metal fatigue resistance.
  • Specifications
  • Drill Bits
  • Documents
Specifications
Specifications Metric Imperial
Minimum Hole Size 130mm 5"
Number of Splines 8
Height of Foot Valve Above Strike Face 66.0mm 2.600"
Length of Shank 260mm 10.24"
Bearing Surface Diameter N/A
Mincon DTH Hammer(s) 55BH, 5DH
Drill Bits

Note: The Part Numbers below require the Carbide Insert type code to be added on the end to complete them. For a combination of carbide inserts use the gauge row code first and then the face code.

Diameter Face Type Part Number No. x Button Dia (inch) Flushing holes Weight Approx.
mm inch Outer Inner Front Kgs. Lbs.
127 5 Concave 50350RC58 8 - 5/8" 4 - 1/2" 3 - 1/2" 2 15.9 35
130 5.125 Concave 51350RC58 8 - 5/8" 4 - 1/2" 3 - 1/2" 2 15.9 35
133 5.25 Concave 52350RC58 8 - 5/8" 4 - 9/16" 3 - 9/16" 2 16.3 36
140 5.5 Concave 54350RC58 8 - 5/8" 4- 9/16" 4- 9/16" 2 17.3 38
140 5 1/2 Flat Face 54350RF58 8 - 5/8" 7 - 5/8" 2 17.3 38
140 5 1/2 Convex 54350RV59 9 - 5/8" 6- 9/16" 4- 9/16" 3 17.3 38
146 5 3/4 Concave 56350RC58 8 - 5/8" 4- 5/8" 4- 5/8" 2 17.7 39
146 5 3/4 Flat Face 56350RF58 8 - 5/8" 8 - 5/8" 2 17.7 39
140 5 3/4 Convex 56350RV59 9 - 5/8" 3 - 5/8" 5 - 5/8" 3 17.7 39
149 5 7/8 Concave 60350RC58 8 - 5/8" 4 - 5/8" 4 - 5/8" 2 18.6 41
152 6 Concave 60350RC58 8 - 5/8" 4 - 5/8" 4 - 5/8" 2 18.6 41
Documents

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