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Diamond Drilling Bits

Diamond Drilling Bits

Black Diamond Drilling has a World Class range of Exploration Diamond Drilling Bits including Impregnated Diamond Bits, Surface Set Diamond Bits, CL Diamond Bits, PDC bits,  TC bits and Core Lifters.

Bits Classification

Bits can be divided into impregnated bits, surface-set diamond bits, CL diamond bits, PDC bits and TC bits.

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Black Diamond’s impregnated diamond drill bits are divided into K series, R series and S series according to the manufacturing process and the matrix heights have C6, C9, C12, C15 and C25.

K series bits are widely used, divided into 6 types of matrix K1, K3, K5, K7, K9 and K11.

R series bits have ultra-wide spectrum, divided into 3 types of matrix R3, R7 and R9.

S series bits can achieve ultra-high matrix, divided into 5 types of matrix S1, S3, S5, S7 and S9.

Black Diamond Drilling impregnated Diamond Bits

Black Diamond Drilling Surface Set Diamond Bit

Surface-set diamond drill bits are brazed with large grain diamonds, which have excellent penetration efficiency. Surface-set diamond bits are widely used in diamond exploration drilling due to their ability to efficiently penetrate hard rock formations and recover core samples for analysis.

StandardNumber of WaterwaysSPC
NC, HC625/40
NC3, HC3625/40

Black Diamond Drilling CL Diamond Bit

CL type diamond bits are designed in the structure of gear profile, they are used for drilling in soft formation. It has the characteristics of high efficiency and productivity, superb cooling and powder discharging effect. they have been widely used and achieved great results.

PDC bits are polychrystalline diamond compact bits, they have two kinds of manufacturing process, matrix type and steel type. They are divided into coring type and non-coring type, suitable for soft to medium hard formation. Black Diamond PDC drill bits have various types and are made of high-quality anti-impact oil PDC cutters.

TC drill bits are made of tungsten carbide which is welded onto the drill steel body, they are generally used for drilling soft rock formation namely 1-4 grade sedimentary rocks, quaternary and other strata. Crushed TC drill bits improve drilling efficiency and coring rates in specific environments.

ItemType
PDC BitPDC Coring BitPDC Non-Coring BitMatrix PDC Bit
TC BitTC Coring BitNon-Coring BitCrushed TC Bit

Black Diamond Drilling PDC and TC Bits range

Impregnated Diamond Bits Structure
ItemFunction
1ThreadHigh precision CNC lathe processing, special thread guage inspection
2Bit ShankMade of high quality alloy steel material
3Core Lifter Seat CaseSupports core lifter case when breaking core
4Tungsten CarbideHigh wear ratio polychristalline diameter, increase bit stability
5WaterwayControl water flow to cool and remove rock dust
6ProfileEnsure the new bit starts working quickly
7CrownUsing Pre-alloyed powder, superb impregnate and control diamond, cuts rock
Black Diamond Drilling Impregnated Bits Structure

Impregnated Diamond Bit Matrix

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ClassificationStandard Matrix Number
A, B Size Core BitC9-K7C9-K9
B Size Core BitC12-K7C12-K9
N, H, P Size Core BitC9-K3C9-K5C9-K7C9-K9
N, H, P Size Core BitC12-K3C12-K5C12-K7C12-K9
S, U Size Core BitK7
Single & Double Tube Core BitC6-K3C6-K5C6-K7C6-K9
Single & Double Tube BitC9-K3C9-K5C9-K7C9-K9
Casing Bit, Rod & Casing ShoeK5
Standard ProfilePoint profile
Standard Waterway NumbersA size 4, B size 6, N size 8, H size 10, P size 12
Standard Waterway width5.5, 5.5, 7
Note: K1 and K11 are selected when drilling environment is known.
StandardStandard Matrix Number
BC, NC, HCC12-R3C12-R7C12-R9
Standard ProfilePoint profile
Standard Waterway NumbersBD size 6, NC size 8, HC size 10
Standard Waterway Width5.5mm
StandardStandard Matrix Number
BCC15-S9
NC, HCC15-S3C15-S7C15-S9
NC, HCC25-S3C25-S7C25-S9
Standard ProfilePoint profile + Turbo waterway
Standard Waterway NumbersBC size 6, NC size 8, HC size 10, Fan shaped waterway

Selection Guideline of Impregnated Diamond Bits Matrix

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Core Bit Configurations
TypeBit SizeSeriesMatrix HeightFace Design
DiamondBCBD310Standard (Pie)
DiamondNC-NC2-NC3BD512Turbo
DiamondHC-HC3-HTBD714Sand Bit (Deep Internal Waterways)
DiamondPC-PC3BD816Jet Bit
BD918Wedge Waterways
BD11Face Discharge
BD15
Bit MatrixK1/S1K3/S3K5/S5K7/S7K9/S9K11
R3R7R9
Matrix HardnessHRC54HRC42HRC30HRC18HRC06HRC00
Rock HardnessSelect K1 or
S1 in case of
low working
life of K3
or S3
Select K11
without footage
of K9 or S9
Grain Size of the
Rock
Breakage of the
Rock
Drilling Rig Power
HardnessSoft
Rock
Soft
Rock
Soft
Rock
Medium
Hard Rock
Medium
Hard Rock
Medium
Hard Rock
Hard
Rock
Hard
Rock
Extra Hard
Rock
Mohs
Hardness
1-2.53-3.544.55-5.56-6.57-7.588.5
Boart
Longyear
ALPHA series
0202
06ABR
07ABR
02
06ABR
07ABR
06ABR
07ABR
06ABR
07ABR
08ABR
08COM
08ABR
08COM
09
09COM
09
09COM
10COM
09
09COM
10COM
Boart
Longyear UMX series
SSUMXSSUMX
07UMX
SSUMX
07UMX
09UMX
SSUMX
07UMX
09UMX
SSUMX
07UMX
09UMX
SSUMX
07UMX
09UMX
07UMX
09UMX
10UMX
09UMX
10UMX
09UMX
10UMX
ATLAS3AC7AC7AC7AC
11AC
11AC11AC
13AC
13AC15AC
FORDIAHERO3HERO7HERO79-11
HERO7
9-11
HERO9
9-11
HERO11
11-1411-14
BLACK
DIAMOND
K1K3K3/K5K3/K5K5/K7K5/K7/K9K7/K9K9/K11K11
R3R7R9
S1S3S3/S5S3/S5S5/S7S5/S7/S9S7/S9S9K11
CL Type Bit
StandardWater Flow
L/min
RPMPenetration RateWeight on Bit
in/mincm/minlbkN
200rpi250rpi80r/cm100r/cm
T2-4620-302300
1400
1000
11.5
7
5
9.2
5.5
4
29
18
13
23
14
10
1,200-2,8009-20
T2-7630-551350
900
6.5
4.5
5.2
3.6
15
11
13
9
2,800-5,80014-25
T2-10150-701000
800
5
3.5
4
2.8
13
9
10
7
3,800-7,80018-36
AC20-402000
1200
850
10
6
4.25
8
4.8
3.4
25
15
11
20
12
9
2,000-5,0009-23
BC
BC2
30-451700
1000
700
8.5
5
3.5
6.8
4
2.8
22
13
9
17
10
7
2,000-5,0009-23
NC
NC3
45-851350
800
6.75
4
5.4
3.2
17
10
14
8
3,000-6,00014-27
HC
HC3
50-1001000
600
5
3
4
2.4
13
8
10
6
4,000-8,00018-36
PC
PC3
60-120800
500
4
2.5
3.2
2
10
6
8
5
5,000-10,00023-45

Standard & technical Parameters of Diamond Bits

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StandardItemOD*ID(mm)Matrix HeightMatrix Available
1ACDrill Bit47.6*27.0C9K9
2BCDrill Bit59.5*36.3C9, C12K7, K9
3BC2Drill Bit59.5*40.7C9, C12K7, K9
4NCDrill Bit75.3*47.6C9, C12K3, K5, K7, K9
5NC2Drill Bit75.3*50.8C9, C12K7, K9
6HCDrill Bit95.6*63.5C9, C12K3, K5, K7, K9
7PCDrill Bit122.0*85.0C9, C12K3, K5, K7, K9
8SCDrill Bit147.6*102.0C12K7
StandardItemOD*ID(mm)Matrix HeightMatrix Available
1BC3Drill Bit59.5*33.5C12K7, K9
2NC3, NCTTDrill Bit75.3*45.0C12K5, K7, K9
3HC3, HCTTDrill Bit95.6*61.1C12K5, K7, K9
4PC3, PCTTDrill Bit122.0*83.0C12K5, K7
StandardItemOD*ID(mm)Matrix HeightMatrix Available
1AWCasing Shoe59.5*48.2C6K5
2BWCasing Shoe75.3*60.2C6K5
3NWCasing Shoe92.0*76.2C6K5
4HWCasing Shoe117.6*99.7C6K5
5HWTCasing Shoe117.6*99.7C6K5
6PWCasing Shoe143.5*124.5C6K5
7PWTCasing Shoe143.5*124.5C6K5
8SWCasing Shoe172.5*146.7C6K5

Bit Range Chart - Black Diamond, Fordia, Hayden, Longyear.

Standard Core Lifters Features

BD Drill core lifters are made of high-quality alloy steel and are heat treated to increase strength, toughness and wear life.

Diamond-Coated Core Lifters Features

Diamond-coated core lifters add a thin composite diamond-coating (CDC) of a hard metal alloy impregnated with synthetic micro-diamonds. The diamond coating process provides superior wear resistance. Based on field results, the diamond coated core lifter returns approximately 300% longer life as compared to a standard core lifter.

Black Diamond Drilling Slotted Core Lifter
 
Slotted
  • Ideal for use in competent ground conditions
  • Increased grip area with the core sample
  • Also known as the Brown Style Core lifter
Black Diamond Drilling Fluted Core Lifter
 
Fluted
  • Ideal for broken ground
  • Increased flexibility; ideal for use when encountering irregular core
  • Also know as Broached Core lifter

Black Diamond Drilling Spiral Core Lifter

 

Spiral
  • Ideal for use in ultra hard ground conditions
Black Diamond Drilling Core lifters Image