Annex C
(informative)
Drilling and sampling equipment for soil and rock
C.1 General
The object of this annex is to provide an illustrated reference guide of the most frequently and universally used equipment for drilling and sampling in soils and rock. The annex includes information regarding basic dimensions and nomenclature. For complete information and dimensions, reference should be made to the appropriate International, European or National Standard quoted herein.
This annex also includes data charts to assist with core bit type selection in relation to ground conditions and to core bit profile selection.
Examples of the execution of certain sampling methods are also included in this annex in order to clarify certain areas in the text of this part of ISO 22475.
C.2 Drill rods and casing
See Figure C.1.
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a) Flush-coupled drill rod | b) Flush-coupled casing | c) Flush-jointed casing |
Key
- 1 drill rod tube
- 2 drill rod coupling
- 3 casing tube
- 4 casing coupling
C.2.1 Drill rods and casing "W"-series according to ISO 3551-1
See Table C.1.
Drill rod | Rod tube | Rod coupling | Casing flush coupling | Casing tube | Casing coupling | Casing flush jointed | Casing | Casing reaming shell | Casing bit | Casing shoe | |||
OD | ID | OD | ID | OD | ID | Set OD | Set OD | Set ID | Set OD | Set ID | |||
RW | 27,89 27,76 |
10,57 10,19 |
RX | 36,63 36,50 |
30,48 30,23 |
RW | 36,63 36,50 |
30,48 30,23 |
— | 37,85 37,59 |
25,53 25,27 |
37,85 37,59 |
30,18 30,05 |
EW | 35,05 34,93 |
11,35 10,97 |
EX | 46,28 46,02 |
38,35 38,10 |
EW | 46,28 46,02 |
38,35 38,10 |
48,13 47,88 |
47375 47,50 |
35,81 35,56 |
47375 47,50 |
38,02 37,90 |
AW | 43,89 43,64 |
16,13 15,75 |
AX | 57,40 58,15 |
48,67 48,41 |
AW | 57,40 58,15 |
48,67 48,41 |
60,07 59,82 |
59,69 59,44 |
45,34 45,09 |
59,69 59,44 |
48,31 48,18 |
BW | 54,23 53,98 |
19,30 18,92 |
BX | 73,28 73,03 |
60,58 60,33 |
BW | 73,28 73,03 |
60,58 60,33 |
75,82 75,56 |
75,44 75,18 |
56,39 56,13 |
75,44 75,18 |
60,25 60,12 |
NW | 66,93 66,68 |
35,18 34,80 |
NX | 89,28 88,90 |
76,58 76,20 |
NW | 89,28 88,90 |
76,58 76,20 |
92,33 92,08 |
91,95 91,69 |
72,26 72,01 |
91,95 91,69 |
76,12 75,87 |
HW | 89,28 88,90 |
60,71 60,32 |
HX | 114,68 114,30 |
100,38 100,00 |
HW | 114,68 114,30 |
101,60 101,22 |
— | 117,65 117,27 |
96,06 95,81 |
117,65 117,27 |
99,82 99,57 |
PX | 140,74 138,66 |
127,38 123,57 |
PW | 140,74 138,66 |
127,38 123,57 |
— | 143,76 143,26 |
117,86 117,48 |
143,76 143,26 |
123,44 123,06 |
|||
SX | 169,55 167,00 |
152,45 147,70 |
SW | 169,55 167,00 |
155,55 151,21 |
— | 172,72 172,21 |
143,26 142,88 |
172,72 172,21 |
146,94 146,56 |
|||
UX | 195,12 192,23 |
179,20 176,20 |
UW | 195,12 192,23 |
180,54 175,79 |
— | 198,50 197,74 |
171,83 171,32 |
198,50 197,74 |
175,64 175,13 |
|||
ZX | 220,73 217,42 |
205,94 201,60 |
ZW | 220,73 217,42 |
208,46 203,00 |
— | 224,16 223,39 |
197,23 196,72 |
224,16 223,39 |
201,04 200,53 |
|||
OD Outer diameter ID Inner diameter – not required |
C2.2 Drillrods and casing "metric" series according to ISO 3552-1
See Table C.2.
Drill rod size | Rod tube | Rod coupling | Casing flush jointed | Casing | Casing bit | Casing shoe | |||
OD | ID | OD | ID | Set OD | Set ID | Set OD | Set ID | ||
33 | 33,70 33,30 |
15,14 14,86 |
46 | 44,35 43,95 |
37,40 36,90 |
46,10 45,90 |
35,10 34,90 |
46,10 45,90 |
37,10 36,90 |
42 | 42,20 41,80 |
22,16 21,84 |
56 | 54,35 53,95 |
47,40 46,90 |
56,10 55,90 |
45,10 44,90 |
56,10 55,90 |
47,10 46,90 |
50 | 50,20 49,80 |
22,16 21,84 |
66 | 64,55 63,95 |
57,50 57,00 |
66,10 65,90 |
55,10 54,90 |
66,10 65,90 |
57,10 56,90 |
76 | 74,55 73,95 |
67,50 67,00 |
76,10 75,90 |
65,10 64,90 |
76,10 75,90 |
67,10 66,90 |
|||
86 | 84,65 83,85 |
77,50 77,00 |
86,10 85,90 |
75,10 74,90 |
86,10 85,90 |
77,10 76,90 |
|||
101 | 98,40 97,60 |
88,70 87,90 |
101,10 100,90 |
86,60 86,40 |
101,10 100,90 |
88,10 87,90 |
|||
116 | 113,50 112,50 |
103,80 102,80 |
116,10 115,90 |
101,60 101,40 |
116,10 115,90 |
103,10 102,90 |
|||
131 | 128,50 127,50 |
118,80 117,80 |
131,10 130,90 |
116,60 116,40 |
131,10 130,90 |
118,10 117,90 |
|||
146 | 143,50 142,50 |
134,20 132,80 |
146,10 145,90 |
131,60 131,40 |
146,10 145,90 |
133,10 132,90 |
|||
OD Outer diameter ID Inner diameter |
C2.3 Drillrods taper threaded "Y" series
See Figure C.2 and Table C.3.

Key
- 1 tool joint-box
- 2 rod tube
- 3 tool joint-pin
EWY | AWY | BWY | NWY | HWY | |||||||
inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | ||
Rod tube | OD | 1,38 | 34,90 | 1,72 | 43,70 | 2,12 | 54,00 | 2,62 | 66,70 | 3,50 | 88,90 |
Tool joint | ID | 0,44 | 11,10 | 0,62 | 15,90 | 0,75 | 19,00 | 1,25 | 31,30 | 1,62 | 41,10 |
Threads per inch | 5 | 5 | 5 | 4 | 4 | ||||||
OD Outer diameter ID Inner diameter |
C.2.4 Drillrods taper threaded "J" series
See Figure C.3 and Table C.4.

Key
- 1 rod end-box
- 2 rod tube
- 3 rod end-pin
AWJ | BWJ | NWJ | KWJ | HWJ | |||||||
inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | ||
Rod tube | OD | 1,75 | 44,50 | 2,12 | 54,00 | 2,62 | 66,70 | 2,87 | 73,00 | 3,50 | 88,90 |
End | ID | 0,62 | 16,00 | 0,75 | 19,00 | 1,12 | 29,00 | 1,37 | 34,90 | 1,75 | 44,50 |
Threads per inch | 5 | 5 | 4 | 4 | 4 | ||||||
OD Outer diameter ID Inner diameter |