MC70 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 MC51 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

Specifications Metric Imperial
Minimum Hole Size 191mm 7.5″
Number of Splines 14
Height of Foot Valve Above Strike Face N/A
Length of Shank 255mm 10.04″
Bearing Surface Diameter N/A
Mincon DTH Hammer(s) MC70
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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
Ballistic B
Semi-Ballistic (Parabolic) P
Conical (Spike) S
Dome PCD Y
Diameter Face Type Part Number No. x Button Dia (inch) Flushing holes Weight Approx.
mm inch Outer Inner Front Kgs. Lbs.
190 7 1/2 Concave 74MC70C39 9 – 3/4″ 6 – 3/4″ 5- 3/4″ 3 49 108
200 7.875 Concave 77MC70C39 9 – 3/4″ 6 – 3/4″ 5- 3/4″ 3 49 108
203 8 Concave 80MC70C39 9 – 3/4″ 6 – 3/4″ 6 – 3/4″ 3 49 108
203 8 Convex 80MC70V32 12 – 3/4″ 6 – 3/4″ 7 – 3/4″ 3 49 108
210 8 1/4 Concave 82MC70C39 9 – 3/4″ 6 – 3/4″ 6 – 3/4″ 3 50.8 112
216 8 1/2 Concave 84MC70C332 12 – 3/4″ 8 – 3/4″ 8 – 3/4″ 3 39.5 87
203 8 1/2 Convex 84MC70V32 12 – 3/4″ 6 – 3/4″ 7 – 3/4″ 3 49 108
222 8 3/4 Concave 86MC70C333 10 – 3/4″ 8 – 3/4″ 8 – 3/4″ 2 53.6 118
225 8 7/8 Concave 87MC70C32D 12 – 3/4″ 6 – 3/4″ 8 – 3/4″ 2 54.9 121
225 8 7/8 Convex 87MC70V32 12 – 3/4″ 6 – 3/4″ 10 – 3/4″ 2 54.9 121
229 9 Concave 90MC70C32 12 – 3/4″ 9 – 3/4″ 9 – 3/4″ 3 53.6 118
235 9 1/4 Concave 92MC70C32 12 – 3/4″ 9 – 3/4″ 9 – 3/4″ 3 56.3 124
241 9 1/2 Concave 94MC70C32 12 – 3/4″ 9 – 3/4″ 13 – 3/4″ 3 59.5 131
241 9 1/2 Convex 94MC70V32 12 – 3/4″ 9 – 3/4″ 14 – 3/4″ 3 59.5 131
248 9 3/4 Concave 96MC70C32 12 – 3/4″ 6 – 3/4″ 13 – 3/4″ 3 62.2 137
251 9 7/8 Concave 97MC70C332 12 – 3/4″ 9 – 3/4″ 13 – 3/4″ 3 64.9 143
254 10 Concave 10MC70C332 12 – 3/4″ 9 – 3/4″ 13 – 3/4″ 3 61.3 135
254 10 Flat 10MC70F32 12 – 3/4″ 6 – 3/4″ 13 – 3/4″ 3 61.3 135