QL120 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 QL120 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 302mm 11 7/8"
Number of Splines 16
Height of Foot Valve Above Strike Face 70.4mm 2.770"
Length of Shank 180.9mm 7.12"
Bearing Surface Diameter 187.27mm 7.373"
Mincon DTH Hammer(s) XP120QL
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.
302 11 7/8" Concave 117QL120C32 12 - 3/4" 6 - 3/4" 19- 3/4" 3 181.1 399
305 12 Concave 12QL120C32 12 - 3/4" 6 - 3/4" 19- 3/4" 3 184.3 406
305 12 Flat 12QL120F32 12 - 3/4" 6 - 3/4" 19- 3/4" 3 184.3 406
311 12.25 Concave 122QL120C32 12 - 3/4" 6 - 3/4" 19- 3/4" 3 189.3 417
311 12 1/4 Flat 122QL120F32 12 - 3/4" 6 - 3/4" 19- 3/4" 3 189.3 417
317 12 1/2 Concave 124QL120C32 12 - 3/4" 6 - 3/4" 19- 3/4" 3 190.2 419
317 12 1/2 Flat 124QL120F32 12 - 3/4" 6 - 3/4" 19- 3/4" 3 190.2 419
327 12 7/8 Concave 127QL120C32 12 - 3/4" 6 - 3/4" 21- 3/4" 3 193.9 427
327 12 7/8 FF 127QL120F32 12 - 3/4" 6 - 3/4" 21- 3/4" 3 193.9 427
330 13 Concave 13QL120C32 12 - 3/4" 6 - 3/4" 19- 3/4" 3 195.7 431
330 13 Flat 13QL120F32 12 - 3/4" 6 - 3/4" 19- 3/4" 3 195.7 431
349 13 3/4 Concave 136QL120C32 12 - 3/4" 9 - 3/4" 34 - 3/4" 3 203.8 449
349 13 3/4 Flat 136QL120F32 12 - 3/4" 9 - 3/4" 34 - 3/4" 3 203.8 449
355 14 Concave 14QL120C32 12 - 3/4" 9 - 3/4" 34 - 3/4" 3 222.9 491
355 14 Flat 14QL120F32 12 - 3/4" 9 - 3/4" 34 - 3/4" 3 222.9 491
381 15 Concave 15QL120C35 15 - 3/4" 12 - 3/4" 35 - 3/4" 3 236.5 521
381 15 Flat 15QL120F35 15 - 3/4" 12 - 3/4" 35 - 3/4" 3 236.5 521
394 15 1/2 Concave 154QL120C35 15 - 3/4" 12 - 3/4" 35 - 3/4" 3 244.3 538
394 15 1/2 Flat 154QL120F35 15 - 3/4" 12 - 3/4" 35 - 3/4" 3 244.3 538
400 15.75 Concave 156QL120C35 15 - 3/4" 12 - 3/4" 35 - 3/4" 3 246.1 542
400 15.75 Flat 156QL120F35 15 - 3/4" 12 - 3/4" 35 - 3/4" 3 246.1 542
406 16 Concave 16QL120C35 15 - 3/4" 12 - 3/4" 35 - 3/4" 3 248.3 547
406 16 Flat 16QL120F35 15 - 3/4" 12 - 3/4" 35 - 3/4" 3 248.3 547
419 16 1/2 Concave 164QL120C35 15 - 3/4" 12 - 3/4" 35 - 3/4" 3 251.1 553
419 16 1/2 Flat 164QL120F35 15 - 3/4" 12 - 3/4" 35 - 3/4" 3 251.1 553
432 17 Concave 17QL120C38 18 - 3/4" 12 - 3/4" 51- 3/4" 3 280.6 618
432 17 Flat 17QL120F38 18 - 3/4" 12 - 3/4" 51- 3/4" 3 280.6 618
438 17.25 Concave 172QL120C38 18 - 3/4" 12 - 3/4" 51- 3/4" 3 281.9 621
444 17 1/2 Concave 174QL120C38 18 - 3/4" 12 - 3/4" 51- 3/4" 3 283.3 624
444 17 1/2 Flat 174QL120F38 18 - 3/4" 12 - 3/4" 51- 3/4" 3 283.3 624
457 18 Concave 18QL120C38 18 - 3/4" 12 - 3/4"
Documents

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