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STANDARDS & SPECIFICATIONS

Set Dimensions for diamond tools

SET DIMENSIONS FOR DIAMOND TOOLS

( A ) DCDMA / BS 4019 : PART 1 : 1974
Core Barrel Design Core I.D. mm Bits I.D. mm Reaming Shells O.D.mm Casing O.D. mm Bits I.D. mm Casing O.D. mm Shoes I.D.mm
RWT 29.46 18.67 29.84 37.72 25.40 37.72 30.11
EWF EWG EWM 37.33 21.46 37.72 47.60 35.68 47.60 37.96
EWT 37.33 22.93 37.72 47.60 35.68 47.60 37.96
AWF AWG AWM 47.62 30.10 48.00 59.55 45.21 59.55 48.24
AWT 47.65 32.53 48.00 59.55 45.21 59.55 48.24
BWF BWG BWM 59.56 42.03 59.94 75.31 56.26 75.31 60.81
BWT 59.56 44.45 59.54 75.31 56.26 75.31 60.81
NWF NWG NWM 75.31 58.75 75.69 91.82 72.31 91.82 75.99
NWT 75.31 54.73 75.69 91.82 72.31 91.82 75.99
HWF HWG 98.79 76.20 99.23 117.46 95.93 117.46 99.69
HWT 98.79 80.95 99.23 117.46 95.93 117.46 99.69
PWF 120.59 92.14 120.59 143.51 117.67 143.51 121.35
SWF 145.99 112.76 145.99 172.46 143.07 172.46 146.75
UWF 174.50 139.82 174.49 198.12 171.57 198.12 175.38
ZWF 199.90 165.22 199.89 223.77 196.98 223.77 200.78

SET DIMENSIONS FOR DIAMOND TOOLS

( A ) DCDMA / BS 4019 : PART 1 : 1974
Core Size Barrel Type Core O.D. mm Bits I.D. mm Reaming Shells O.D.mm Casing O.D. mm Bits I.D. mm Casing O.D. mm Shoes I.D.mm
36 T 36.0 22.0 36.3
T2 36.0 22.0 36.3
46 T 46.0 32.0 46.3
T2 46.0 32.0 46.3 46.00 35.00 46.00 47.00
56 T 56.0 42.0 56.3
T2 56.0 42.0 56.3 56.00 45.00 56.00 57.00
66 T 66.0 52.0 66.3
T2 66.0 52.0 66.3 66.00 55.00 66.00 57.00
K 66.0 38.0 66.3
T6 66.0 47.0 66.3
76 T 76.0 62.0 76.3
T2 76.0 62.0 76.3 76.00 65.00 76.00 67.00
K 76.0 48.0 76.3
T6 76.0 57.0 76.3
86 T 86.0 72.0 86.3
T2 86.0 72.0 86.3 86.00 75.00 86.00 77.00
K 86.0 58.0 86.3
T6 86.0 67.0 86.3
101 T2 101.0 84.0 101.3
K 101.0 72.0 101.3 101.00 86.50 101.00 89.00
T6 101.0 79.0 101.3
116 K 116.0 86.0 116.3
T6 116.0 93.0 116.3 116.00 101.50 116.00 104.00
131 K 131.0 101.0 131.3
T6 131.0 108.0 131.3 131.00 116.50 131.00 119.00
146 K 146.3 116.0 146.3
T6 146.0 123.0 146.3 141.00 141.00 141.00 134.00

Diamond loading charts for surface set bits ( A ) DCDMA / BSS STANDARDS

( A ) DCDMA / BSS STANDARDS

( A ) DCDMA / BSS STANDARDS
( a ) CORE BITS
Size Standard No. Of Waterways Stone Size Range (S.P.C.)
4.7 10-15 15-25 25-40 40-60 60-80 80-100
XRB / XRT 2 09-10 07-08 06-7 05-06 04-05 03-04 3
EXL / EWM
EX/EWG		 4 11-12 08-10 08-10 06-08 05-06 04-05 4
AXL/AWM
AX/AWG		 4 16-18 14-16 11-14 09-11 07-09 06-07 05-06
BXL/BWM
BX/BWG		 4 20-23 17-19 14-17 12-14 10-12 08-10 06-08
NXL/NWM
NX/NWG		 6 30-35 23-27 18-23 15-18 13-15 11-13 09-11
2 3/4" x 3 7/8" 6 53-66 43-49 37-43 31-37 27-31 24-27 20-24
4"x 5 1/2" 12 90-108 71-79 61-71 56-61 50-56 45-50 40-45
NXW/NQWL 4 40-45 33-40 25-33 21-25 19-21 17-19
BXWL/BQWL 4 25-30 20-25 15-20 13-15 11-13 09-11
AXWL/AQWL 4 18-22 15-18 11-15 09-11 07-09 06-07
NWT 6 23-27 18-23 15-18 13-15 11-13 09-11 08-09
BWT 4 17-19 14-17 12-14 10-12 08-10 07-08 06-07
AWT 4 14-16 11-14 09-11 07-09 06-07 05-06 04-05
( b) PILOT TYPE NON-CORING BITS
Size Standard No. Of Water ways Stone Size Range ( S.P.C.)
04-07 10-15 15-25 25-40 40-60 60-80
EX 1 17-20 14-16 11-14 08-11 06-08 05-06
AX 1 26-30 21-25 16-21 12-16 09-12 07-09
BX 2 32-40 25-30 20-25 16-20 13-16 10-13
NX 2 42-50 33-40 27-33 22-27 18-22 15-18
( c ) CASING BITS
Size Standard No. Of Water ways Stone Size Range ( S.P.C.)
10-15 15-25 25-40 40-60 60-80
XRB / XRT 2 09-11 07-25 06-07 05-06 04-05
EX / EW 4 12-14 09-12 07-09 05-07 04-05
AX/AW 4 16-18 13-16 11-13 09-11 07-09
BX/BW 6 20-25 16-20 13-16 11-03 09-11
NX/NW 7 25-30 20-25 17-20 15-17 13-15
4 1/2" HX/HW 8 40-46 35-40 30-35 26-30 22-26
( d ) CASING SHOE BITS
Size Standard No. Of Water ways Stone Size Range ( S.P.C.)
10-15 15-25 25-40 40-60 60-80
XRB / XRT 2 07-08 06-07 05-06 04-05 03-04
EX / EWX 4 09-10 07-09 05-07 04-05 03-04
AX/AWX 4 14-16 11-14 09-11 07-09 05-07
BX/BWX 6 18-23 14-18 11-14 09-11 07-09
NX/NW 7 22-26 18-22 15-18 13-15 11-13
4 1/2" HX/HWX 8 38-43 32-38 27-32 23-27 20-23

Diamond loading charts for surface set bits ( B ) SWEDISH STANDARD

( B ) SWEDISH STANDARD
( a ) T-Type CORE BITS
Size(mm) Standard No. Of Water ways Stone Size Range ( S.P.C.)
04-07 10-15 15-25 25-40 40-60 60-80 80-100
36 4 13-15 10-12 06-10 06-08 05-06 04-05 03-04
46 4 15-18 12-14 10-12 08-10 06-08 05-06 04-05
56 4 17-21 14-16 12-14 10-12 08-10 06-08 05-06
66 4 20-25 16-18 14-16 12-14 10-12 08-10 06-08
76 6 23-27 18-20 16-18 14-16 12-14 10-12 08-10
86 6 25-29 20-22 18-20 16-18 14-16 12-14 10-12
( b ) T-6 Type CORE BITS
Size(mm) Standard No. Of Water ways Stone Size Range ( S.P.C.)
04-07 10-15 15-25 25-40 40-60 60-80 80-100
76 6 28-32 22-24 19-22 17-19 14-17 12-14 10-12
86 6 30-35 24-26 22-24 19-22 17-19 14-17 12-15
101 6 37-46 30-35 26-30 22-26 19-23 17-19 15-17
116 8 43-54 35-38 30-35 26-30 22-26 20-22 18-20
131 10 48-60 38-42 34-38 28-34 24-28 22-24 20-22
146 12 55-68 46-52 38-46 32-38 26-32 24-26 22-24
( c ) CASING BITS
Size(mm) Standard No. Of Water ways Stone Size Range ( S.P.C.)
10-15 15-25 25-40 40-60 60-80
44/46 4 08-10 06-08 05-06 04-05 4
54/56 4 11-13 08-11 06-08 05-06 5
64/66 4 12-14 10-12 08-10 07-08 6-7
74/76 6 14-16 12-14 10-12 08-10 7-8
84/86 6 16-18 13-16 11-13 09-11 8-9
101 6 25-29 22-25 18-22 15-18
116 8 29-32 25-29 22-25 19-22
131 10 32-35 28-32 23-28 21-23
141 12 38-43 32-38 27-32 24-27
( d ) CASING SHOES
Size(mm) Standard No. Of Water ways Stone Size Range ( S.P.C.)
10-15 15-25 25-40 40-60 60-80
44/36 4 07-09 05-07 04-05 03-04 3
54/56 4 09-11 06-09 05-06 04-05 4
64/66 4 11-12 08-10 07-08 06-07 5-6
74/76 6 12-14 10-12 08-10 07-08 6-7
84/86 6 14-16 11-14 09-11 08-09 7-8
101 6 22-25 20-22 17-20 14-17
116 8 26-29 23-26 20-23 17-20
131 10 29-32 26-29 23-26 20-23
146 12 34-38 30-34 26-30 23-26

Impregnated bits

IMPREGNATED BITS

( A ) DCDMA / BSS STANDARDS
( a ) CORE BITS
Size Standard No. Of Waterways Heavy Concentration Cts. Medium Concentration Cts. Light Concentration Cts.
EX / EWG / EWL / EWM / EWT 3 15 12 9
AX / AWG / AWL / AWM / AWT 4 22 18 14
BX / BWG / BWL / BWM / BWT 5 30 24 18
NX / NXG / NWL / NWM / NWT/ 6 44 35 26
HX / WG / HWT 8 70 55 45
( b ) CASING BITS / SHOES
Size Standard No. Of Waterways Heavy Concentration Cts. Medium Concentration Cts. Light Concentration Cts.
EX Casing Bit 4 17 13 10
AX Casing Bit 5 28 22 17
BX Casing Bit 6 43 34 25
NX Casing Bit 7 54 43 32
EX Casing Shoe 4 14 11 08
AX Casing Shoe 5 20 16 12
BX Casing Shoe 6 35 23 21
NX Casing Shoe 7 45 36 27
( B ) SWEDISH STANDARDS
( a ) "A" , "B" and "T" TYPE CORE BITS
Size Standard No. Of Waterways Heavy Concentration Cts. Medium Concentration Cts. Light Concentration Cts.
36mm 3 14 11 8
46mm 4 17 14 11
56mm 5 22 18 14
66mm 5 27 22 17
76mm 6 32 26 20
86mm 7 37 30 23
101mm 8 44 35 26
116mm 9 49 39 29
131mm 10 54 43 32
146mm 12 59 49 38
( b ) CASING BITS / SHOES
Size Standard No. Of Waterways Heavy Concentration Cts. Medium Concentration Cts. Light Concentration Cts.
44 / 46 mm Casing Bit 4 14 12 9
54 / 56 mm Casing Bit 5 15 13 10
64 / 66 mm Casing Bit 5 17 14 11
74 / 76 mm Casing Bit 6 22 18 14
84 / 86 mm Casing Bit 7 25 20 16
101 mm Casing Bit 8 44 35 26
116 mm Casing Bit 9 49 39 29
131 mm Casing Bit 10 54 43 32
146 mm Casing Bit 12 59 49 38
44 / 46 mm Casing Bit 4 12 9 6
54 / 56 mm Casing Bit 4 13 10 7
64 / 66 mm Casing Bit 5 15 12 9
74 / 76 mm Casing Bit 6 20 16 12
84 / 86 mm Casing Bit 7 22 17 13
101 mm Casing Bit 8 40 31 22
116 mm Casing Bit 9 45 35 25
131 mm Casing Bit 10 48 37 27
146 mm Casing Bit 12 52 42 31

Balanced ring type reaming shells

BALANCED RING TYPE REAMING SHELLS

( A ) DCDMA / BSS STANDARDS
Size Cts. S.P.C.
XRT / XRB 2.50 15/25
EX / EWG / EWL / EWM / EWT 4.0 15/25
AX / AWG / AWL / AWM / AWT 5.50 15/25
BX / BWG / BWL / BWM / BWT 6.50 15/25
NX / NWG / NWL / NWM / NWT 8.00 15/25
HX / HWG / HWT 10.00 15/25
2 3/4" x 3 7/8" 10.00 15/25
4" x 5 1/2" 12.00 15/25
AXWL / AQWL 5.50 15/25
BXWL / BQWL 6.50 15/25
NXWL / NQWL 8.00 15/25
HXWL / HQWL 10.00 15/25
( B ) SWEDISH STANDARDS
Size Cts. S.P.C.
36.3mm 4.00 15/25
46.3mm 5.0 15/25
56.3mm 6.00 15/25
66.3mm 6.50 15/25
76.3mm 8.00 15/25
86.3mm 10.00 15/25
101.3mm 12.00 15/25
116.3mm 14.00 15/25
131.3mm 16.00 15/25
146.3mm 18.00 15/25

Drill rods and casings

DRILL RODS AND CASINGS

D.C.D.M.A. / BS-4019 : PART I : 1974
DRILL RODS
Size O.D. mm I.D. mm Wt. Kg. per 10 fit Coupling I.D.mm Threads per inch. Content (Liter/100 ft.)
E* 33.3 21.4 12.7 11.1 3 11.0
A* 41.3 28.6 17.2 14.3 3 19.5
B 48.4 35.7 20.8 15.9 5 30.5
N 60.3 50.8 22.2 25.4 4 61.7
RW 27.8 18.2 08.6 10.3 4 07.9
EW 34.9 22.2 14.0 12.7 3 11.7
AW* 44.0 30.9 19.9 15.9 3 22.9
BW 54.0 44.5 19.0 19.0 3 47.3
NW 66.7 57.2 24.5 34.9 3 78.3
HW 88.9 77.8 38.6 60.3 3 145.0

* Parallel Wall

FLUSH-JOINT CASINGS
Size O.D. mm I.D. mm Wt.Kg per 10 ft. Threads per inch Content(Litre/100 ft.)
RW 36.5 30.2 08.2 5 21.6
EW 46.0 38.1 12.7 4 34.7
AW 57.1 48.4 17.2 4 56.1
BW 73.0 60.5 31.2 4 87.1
NW 88.9 76.2 39.0 4 138.9
HW 114.3 101.6 51.3 4 247.0

All dimensions weights and volumes are nominal approximations

FLUSH COUPLED CASINGS
Size O.D. mm I.D. mm Wt.Kg per 10 ft. Coupling I.D. mm Threads per inch Content(Litre/100 ft.)
RX 36.5 30.2 08.2 30.2 8 21.6
EX 46.0 41.3 08.2 38.1 8 40.9
AX 57.1 50.8 13 48.4 8 61.7
BX 73.0 65.1 21.3 60.3 8 101.1
NX 88.9 80.9 27.2 76.2 8 156.7
HX 114.3 104.8 40.8 100.0 5 262.7

Long year design

LONG YEAR DESIGN

WIRELINE DRILL RODS
SERIES 'Q' WIRELINE "WEDGLOK" DRILL RODS
Size O.D. mm I.D. mm Wt. Kg. per 10 fit Threads per inch. Content (Liter/100 ft.)
AQ 44.5 34.9 14.1 4 29.2
BQ 55.6 46.0 18.2 3 50.7
NQ 69.9 60.3 23.1 3 87.1
HQ 88.9 77.8 34.9 3 144.6
PQ 117.47* 103.2 46.5* 3 225.0

*COUPLING O.D. *WITH COUPLING

DIAMOND CORING BITS
Size CORE DIA mm HOLE DIA mm HOLE VOLUME(Litre/100 ft.)
AQ-AQ-U 27.0 48.0 55.2
BQ-BQ-U 36.5 60.0 86.0
NQ-NQ-U 47.6 75.7 137.5
HQ 63.5 96.0 220.8
PQ 85.0 122.6 359.8