Digitrex 3-3000-00a-F Drill User Manual


 
Appendix
®
Depth Increase in Inches per 10-foot Rod
Percent Depth Increase Percent Depth Increase
1
1
27
31
2
2
28
32
3
4
29
33
4
5
30
34
5
6
31
36
6
7
32
37
7
8
33
38
8
10
34
39
9
11
35
40
10
12
36
41
11
13
37
42
12
14
38
43
13
15
39
44
14
17
40
45
15
18
41
46
16
19
42
46
17
20
43
47
18
21
44
48
19
22
45
49
20
24
50
54
21
25
55
58
22
26
60
62
23
27
70
69
24
28
80
75
25
29
90
80
26
30
100
85
74 DigiTrak
®
Mark III Operator’s Manual