MD3.5 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 MD3.5 shank and Mincon Sales Technicians can work with you to determine the ideal design for your application.
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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.

For more information:

+40 314 253 800
info@romned.ro

Ron van Dam
CEO

SpecificationsMetricImperial
Minimum Hole Size130mm5″
Number of Splines8
Height of Foot Valve Above Strike Face58.4mm2.300″
Length of Shank181mm7.11″
Bearing Surface DiameterN/A
Mincon DTH Hammer(s)MP35
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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.

Carbide Insert Codes
Dome (Spherical)D
BallisticB
Semi-Ballistic (Parabolic)P
Conical (Spike)S
Dome PCDY
DiameterFace TypePart NumberNo. x Button Dia (inch)Flushing holesWeight Approx.
mminchOuterInnerFrontKgs.Lbs.
953 3/4Concave36MD35C787 – 7/16″4 – 7/16″2 – 7/16″2511
953.75Flat Face36MD35F188 – 1/2″6 – 7/16″2511
953.75Convex36MD35V177 – 1/2″3 – 1/2″2 – 1/2″2511
983.875Concave37MD35C788 – 7/16″4 – 7/16″2 – 7/16″25.913
983 7/8Flat Face37MD35F966 – 9/16″6 – 1/2″25.913
983 7/8Convex37MD35V788 – 7/16″4 – 7/16″4 – 7/16″25.913
1024Concave40MD35C788 – 7/16″4 – 7/16″4 – 7/16″26.414
1024Flat Face40MD35F788 – 7/16″7 – 7/16″26.414
1054 1/8Concave41MD35C788 – 7/16″4 – 7/16″4 – 7/16″26.815
1054 1/8Convex41MD35V788 – 7/16″4 – 7/16″4 – 7/16″26.815