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Casing Drilling Bit Concentric Under Reaming Drilling System 219mm

Casing Drilling Bit Concentric Under Reaming Drilling System 219mm

Type: Casing drilling system Model number: MRS 219 casing bit Usage:Well drilling, pilling,supporting, tunneling. Steel Material:TIMKEN Button Material: YK05 Brand name: Ming Place of Origin: China
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Casing drilling bit concentric under reaming drilling system 219mm

Product details:

MRS concentric wave slidebit casing drilling system is made up of guide device and reamer bit which adopted graphic design to enhance penetration rate.

Expanding principle as below:

Guide device calms down pressure, open expanding wings in clockwise and shut down expanding wings in anticlockwise. The concentric slider bit casing drilling system is used for loose rock and can greatly increase the penetration rate. This concentric casing drilling bit is suitable for 219-813 tube in diameter.

Product advantage:
1.Enhance penetration and perpendicularity
2.Reduce torque requirements
3.Deal with straight,oblique hole and other angle holes
4.Lowest effect with environment

Model

Hole dia.(mm)

Weight (KG)

Closed dia(mm)

Pilot dia (mm)

Total length(mm)

Case Dia(OD*ID)

Spline

MK-MRS190

238

80

190

203

550

219*206

DHD360,QL6,SD6

MK-MRS215

276

100

215

236

590

254*240

DHD380,QL8,SD8

MK-MRS235

293

110

236

251

590

273*254

DHD380,QL8,SD8

MK-MRS240

293

115

241

256

590

273*260

DHD380,QL8,SD8

MK-MRS280

345

180

280

300

740

323*302

SD10

MK-MRS315

373

240

315

336

1050

356*337

N120

MK-MRS365

432

350

365

381

1100

406*387

N120,N125

MK-MRS410

478

460

412

430

1100

457*435

N125

MK-MRS460

530

585

460

475

1100

508*483

N125,SD18

MK-MRS510

580

860

509

527

1180

559*533

N180,SD18

MK-MRS560

635

910

560

581

1180

610*584

N180,SD18

MK-MRS610

695

1100

600

630

1200

660*632

N240

MK-MRS660

735

1200

656

681

1207

711*685

N240

MK-MRS710

785

1480

710

730

1207

762*736

N240

MK-MRS745

838

1650

745

776

1207

813*780

N240

 

How to order:

Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank Style


 

 


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