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.
![image](https://www.romned.ro/wp-content/uploads/2020/06/QL120_Overview-1.jpg)
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 | 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 |
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. | |||
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″ |