MK Diamond

An American family owned leader in coring rigs and bits
MK Diamond manufactures core rigs, handheld drills, and diamond core bits which are engineered to stand up to the rigors of the professional coring market. These tools deliver exceptional drilling performance in a wide range of concrete and masonry applications.

Conditions

Core Bits

MK Black Supreme Grade for Concrete & Asphalt

The MK Black line is a supreme grade core bit engineered for exceptional footage and fast/aggressive drilling characteristics. Excellent performance in applications associated with moderate to high steel reinforcement.
Segment Height 7.5mm Drilling Depth 14"

Diameter Nut MK Black

  • 1/2" (13mm) 5/8"-11 156373
  • 5/8" (16mm) 5/8"-11 157176
  • 3/4" (19mm) 5/8"-11 156374
  • 7/8" (22mm) 5/8"-11 156375
  • 1" (25mm) 5/8"-11 156376
  • 1-1/8" (29mm) 5/8"-11 157177
  • 1-1/4" (32mm) 5/8"-11 156377
  • 1-3/8" (35mm) 5/8"-11 156534
  • 1-1/2" (38mm) 5/8"-11 156378
  • 1-5/8" (39mm) 5/8"-11 157178
  • 1-3/4" (44mm) 1-1/4"-7 156379
  • 2" (51mm) 1-1/4"-7 156380
  • 2-1/4" (57mm) 1-1/4"-7 156381
  • 2-1/2" (64mm) 1-1/4"-7 156382
  • 2-3/4" (70mm) 1-1/4"-7 156383
  • 3" (76mm) 1-1/4"-7 156384
  • 3-1/4" (83mm) 1-1/4"-7 156385
  • 3-1/2" (89mm) 1-1/4"-7 156386
  • 4" (102mm) 1-1/4"-7 156387
  • 4-1/4" (108mm) 1-1/4"-7 156388
  • 4-1/2" (114mm) 1-1/4"-7 156389
  • 5" (127mm) 1-1/4"-7 156390
  • 5-1/2" (140mm) 1-1/4"-7 157628
  • 6" (152mm) 1-1/4"-7 156391
  • 6-1/4" (159mm) 1-1/4"-7 156392
  • 6-1/2" (165mm) 1-1/4"-7 156393
  • 7" (178mm) 1-1/4"-7 156394
  • 8" (203mm) 1-1/4"-7 156396
  • 9" (229mm) 1-1/4"-7 156397
  • 10" (254mm) 1-1/4"-7 156398
  • 12" (305mm) 1-1/4"-7 156399
  • 14" (356mm) 1-1/4"-7 156400
  • 16" (406mm) 1-1/4"-7 170051
MK Orange Premium Grade for Concrete & Asphalt

The MK Orange line is a premium grade bit designed for wet drilling applications that include light to moderate steel reinforcement. The high diamond concentration ensures excellent footage and cutting speed.
Segment Height 7.5mm Drilling depth 14"

Diameter Nut MK Orange

  • 1" (25mm) 5/8"-11 156348
  • 1-1/8" (29mm) 5/8"-11 204011
  • 1-1/4" (32mm) 5/8"-11 156349
  • 1-1/2" (38mm) 5/8"-11 156350
  • 1-3/4" (44mm) 1-1/4"-7 156351
  • 2" (51mm) 1-1/4"-7 156352
  • 2-1/4" (57mm) 1-1/4"-7 156353
  • 2-1/2" (64mm) 1-1/4"-7 156354
  • 2-3/4" (70mm) 1-1/4"-7 156355
  • 3" (76mm) 1-1/4"-7 156356
  • 3-1/4" (83mm) 1-1/4"-7 156357
  • 3-1/2" (89mm) 1-1/4"-7 156358
  • 4" (102mm) 1-1/4"-7 156359
  • 4-1/4" (108mm) 1-1/4"-7 156360
  • 4-1/2" (114mm) 1-1/4"-7 156361
  • 5" (127mm) 1-1/4"-7 156362
  • 5-1/2" (140mm) 1-1/4"-7 157627
  • 6" (152mm) 1-1/4"-7 156363
  • 6-1/4" (159mm) 1-1/4"-7 156364
  • 6-1/2" (165mm) 1-1/4"-7 156365
  • 7" (178mm) 1-1/4"-7 156366
  • 8" (203mm) 1-1/4"-7 156368
  • 9" (229mm) 1-1/4"-7 156369
  • 10" (254mm) 1-1/4"-7 156370
  • 12" (305mm) 1-1/4"-7 156371
  • 14" (356mm) 1-1/4"-7 156372
  • 16" (406mm) 1-1/4"-7 170052
MK Yellow Standard Grade for Concrete & Asphalt

The MK Yellow line is a standard grade core bit, and is an excellent choice for all types of general wet drilling. The MK Yellow delivers fast drilling and good footage.
Segment Height 7.5mm Drilling depth 14"

Diameter Nut MK Yellow

  • 1" (25mm) 5/8"-11 156320
  • 1-1/8" (29mm) 5/8"-11 104011
  • 1-1/4" (32mm) 5/8"-11 156321
  • 1-3/8" (35mm) 5/8"-11 156965
  • 1-1/2" (38mm) 5/8"-11 156322
  • 1-3/4" (44mm) 1-1/4"-7 156323
  • 2" (51mm) 1-1/4"-7 156324
  • 2-1/4" (57mm) 1-1/4"-7 156325
  • 2-1/2" (64mm) 1-1/4"-7 156326
  • 2-3/4" (70mm) 1-1/4"-7 156327
  • 3" (76mm) 1-1/4"-7 156328
  • 3-1/4" (83mm) 1-1/4"-7 156329
  • 3-1/2" (89mm) 1-1/4"-7 156330
  • 4" (102mm) 1-1/4"-7 156331
  • 4-1/4" (108mm) 1-1/4"-7 156332
  • 4-1/2" (114mm) 1-1/4"-7 156333
  • 5" (127mm) 1-1/4"-7 156334
  • 6" (152mm) 1-1/4"-7 156335
  • 6-1/4" (159mm) 1-1/4"-7 156336
  • 6-1/2" (165mm) 1-1/4"-7 156337
  • 7" (178mm) 1-1/4"-7 156338
  • 8" (203mm) 1-1/4"-7 156340
  • 9" (229mm) 1-1/4"-7 156341
  • 10" (254mm) 1-1/4"-7 156342
  • 12" (305mm) 1-1/4"-7 156343
  • 14" (356mm) 1-1/4"-7 156344
Zenesis

Zenesis™ core bits are designed to outperform standard core bits with patterned diamond technology. With standard diamond segments the diamonds fall in random locations leaving some areas of the segment crowded with diamond and other areas with fewer diamonds. With patented "Zenesis™" technology each and every diamond is placed exactly where optimum performance can be achieved. This strategic placement ensures that every diamond's full potential is reached. Designed for wet drilling only.
Segment Height 10mm Drilling Depth 14"

Diameter Nut Part #

  • 2" (51mm) 1-1/4"-7 168670
  • 2-1/4" (57mm) 1-1/4"-7 170893
  • 2-1/2" (64mm) 1-1/4"-7 168671
  • 3" (76mm) 1-1/4"-7 168672
  • 3-1/4" (83mm) 1-1/4"-7 170894
  • 3-1/2" (89mm) 1-1/4"-7 168673
  • 4" (102mm) 1-1/4"-7 168674
  • 4-1/4" (108mm) 1-1/4"-7 168675
  • 4-1/2" (114mm) 1-1/4"-7 168676
  • 5" (127mm) 1-1/4"-7 168677
  • 6" (152mm) 1-1/4"-7 168678
  • 6-1/4" (159mm) 1-1/4"-7 168679
  • 6-1/2" (165mm) 1-1/4"-7 168680
  • 7" (178mm) 1-1/4"-7 168681
  • 8" (203mm) 1-1/4"-7 168682
  • 9" (229mm) 1-1/4"-7 168683
  • 10" (254mm) 1-1/4"-7 168684
  • 12" (305mm) 1-1/4"-7 168685
  • 14" (356mm) 1-1/4"-7 168686
Blue Turbo Professional Grade

The high diamond concentration and segment design of these bits provide better channeling of slurry, reduced vibration and superior performance in concrete with heavy steel.
Segment Height 10mm Drilling Depth 14"

Diameter Nut Blue Turbo

  • 2" (51mm) 1-1/4"-7 156570
  • 2-1/2" (64mm) 1-1/4"-7 156571
  • 3" (76mm) 1-1/4"-7 156572
  • 3-1/2" (89mm) 1-1/4"-7 156573
  • 4" (102mm) 1-1/4"-7 156574
  • 4-1/2" (114mm) 1-1/4"-7 156575
  • 5" (127mm) 1-1/4"-7 156576
  • 6" (152mm) 1-1/4"-7 156577
Black Turbo Supreme Grade

The high diamond concentration and segment design of these bits provide better channeling of slurry, reduced vibration and superior performance in concrete with heavy steel.
Segment Height 10mm Drilling Depth 14"

Diameter Nut Black Turbo

  • 2" (51mm) 1-1/4"-7 158711
  • 2-1/4" (57mm) 1-1/4"-7 158712
  • 2-1/2" (64mm) 1-1/4"-7 158713
  • 3" (76mm) 1-1/4"-7 158714
  • 3-1/2" (89mm) 1-1/4"-7 158715
  • 4" (102mm) 1-1/4"-7 158716
  • 4-1/2" (114mm) 1-1/4"-7 158717
  • 5" (127mm) 1-1/4"-7 158718
  • 6" (152mm) 1-1/4"-7 158719
Crown Bits

Professional grade crown rim core bits for prestressed and precast concrete.
Segment Height 7.5mm Drilling Depth 14"

Diameter Thread Part #

  • 1/2" (13mm) 5/8"-11 157009
  • 1" (25mm) 5/8"-11 157010
  • 1-1/2" (38mm) 5/8"-11 157011
  • 2" (51mm) 1-1/4"-7 157793
  • 2-1/2" (63mm) 1-1/4"-7 157794
  • 2-3/4" (70mm) 1-1/4"-7 160305
  • 3" (76mm) 1-1/4"-7 157795
  • 3-1/2" (89mm) 1-1/4"-7 157796
  • 4" (102mm) 1-1/4"-7 157797
  • 4-1/2" (114mm) 1-1/4"-7 157798
  • 5" (127mm) 1-1/4"-7 157799
  • 6" (152mm) 1-1/4"-7 157800
Premium MK Dry Bits

MK Dry Core Bits are specifically designed to tackle a variety of soft brick and concrete block drilling operations. They feature laser-welded technology and inventive bar-slot cooling to promote efficiency, reliability and safety. MK Dry Cutting Bits are 10" in length, come with standard 5/8"-11 threaded nuts, and easily attach to most hand-held drills.
Segment Height 7.5mm Drilling Depth 9-1/4"

Diameter* Min Amps Max/Min RPM Premium

  • 1" (25mm) 6 6000/2300 158661
  • 1-1/4" (32mm) 6 6000/2300 158662
  • 1-1/2" (38mm) 6 6000/2300 158663
  • 1-3/4" (44mm) 7 5000/1600 158664
  • 2" (51mm) 7 5000/1200 158665
  • 2-1/4" (57mm) 7 5000/1200 158666
  • 2-1/2" (64mm) 7 5000/800 158667
  • 3" (76mm) 10 5000/800 158668
  • 3-1/2" (83mm) 10 5000/700 158669
  • 4" (102mm) 10 5000/700 158670
  • 4-1/2" (114mm) 10 5000/700 158671
  • 5" (127mm) 10 5000/700 158672
  • 6" (152mm) 10 2500/600 158710
Standard MK Dry Bits

MK Dry Core Bits are specifically designed to tackle a variety of soft brick and concrete block drilling operations. They feature laser-welded technology and inventive bar-slot cooling to promote efficiency, reliability and safety. MK Dry Cutting Bits are 10" in length, come with standard 5/8"-11 threaded nuts, and easily attach to most hand-held drills.
Segment Height 7.5mm Drilling Depth 9-1/4"

Diameter* Min Amps Max/Min RPM Standard

  • 1" (25mm) 6 6000/2300 155937
  • 1-1/4" (32mm) 6 6000/2300 155938
  • 1-1/2" (38mm) 6 6000/2300 155939
  • 1-3/4" (44mm) 7 5000/1600 156316
  • 2" (51mm) 7 5000/1200 155940
  • 2-1/4" (57mm) 7 5000/1200 155941
  • 2-1/2" (64mm) 7 5000/800 155942
  • 3" (76mm) 10 5000/800 155943
  • 3-1/2" (83mm) 10 5000/700 155944
  • 4" (102mm) 10 5000/700 155945
  • 4-1/2" (114mm) 10 5000/700 155946
  • 5" (127mm) 10 5000/700 155947
  • 6" (152mm) 10 2500/600 155948
Core Bit Extensions
MK Diamond's Core Bit Extensions offer a quick, easy and low cost way to achieve greater drilling depths with core bits. The 12" tube extensions thread into our Yellow, Orange and Black Segmented bits and our Blue and Black Turbo bits. Multiple tube extensions may be used extending the drilling depth in increments of 12".
Core Bit Extensions

Diameter Length Wall Thickness Part #

  • 1-1/4" (32mm) 12" 2.0mm 168451
  • 1-3/8" (35mm) 12" 2.0mm 168450
  • 1-1/2" (38mm) 12" 2.0mm 168452
  • 1-3/4" (44mm) 12" 2.0mm 168453
  • 2" (51mm) 12" 2.0mm 168454
  • 2-1/4" (57mm) 12" 2.0mm 168455
  • 2-1/2" (64mm) 12" 2.0mm 168456
  • 3" (76mm) 12" 2.0mm 168457
  • 3-1/4" (83mm) 12" 2.2mm 168458
  • 3-1/2" (89mm) 12" 2.2mm 168459
  • 4" (102mm) 12" 2.5mm 168460
  • 4-1/4" (108mm) 12" 2.5mm 168461
  • 4-1/2" (114mm) 12" 2.5mm 168462
  • 5" (127mm) 12" 2.5mm 168463
  • 6" (152mm) 12" 2.7mm 168464
  • 6-1/4" (159mm) 12" 2.7mm 168465