|
Hole Enlarger
|
|
Hole enlargers are available in 26 sizes to provide hole enlargements from six through 36 in.
|
|
Body Types
|
- Standard model furnished box down for use with a rock bit as the pilot, but also may be used with a bullnose. Bullnoses specified either round or sidehill.
- Directional model has an integral bullnose or stinger down.
- Cluster model, with four to six cutters, is for holes larger than 26 in., opening a 171⁄2 in. hole to 36 or 42 inches in a single pass.
|
|
Master Driller Specifications
|
|
Body Series
|
Std. Opening Dia.
|
Min Pilot Hole
|
Body Dia.
|
Fishing Neck
|
Overall Length
|
Connections API Reg.
|
Wt. (lb.)
|
|
Length
|
Dia.
|
Top Pin
|
Bottom Box
|
|
8200
|
12 1/4
|
8 1/2
|
8 1/4
|
24
|
8
|
60
|
6 5/8
|
4 1/2
|
640
|
|
9500
|
12 1/4
|
8 1/2
|
9 1/2
|
24
|
8
|
67
|
6 5/8
|
6 5/8
|
915
|
|
14 3/4
|
9 1/2
|
9 1/2
|
24
|
8
|
67
|
6 5/8
|
6 5/8
|
915
|
|
11000
|
17 1/2
|
9 1/2
|
11 5/8
|
24
|
8
|
70
|
6 5/8
|
6 5/8
|
1100
|
|
22 5/8
|
9 1/2
|
11 5/8
|
24
|
8
|
70
|
6 5/8
|
6 5/8
|
1100
|
|
15000
|
17 1/2
|
9 1/2
|
15 5/8
|
24
|
10
|
74
|
7 5/8
|
7 5/8
|
1900
|
|
26 5/8
|
12 1/4
|
15 5/8
|
24
|
10
|
74
|
7 5/8
|
7 5/8
|
1900
|
|
36 5/8
|
24 5/8
|
15 5/8
|
24
|
10
|
74
|
7 5/8
|
7 5/8
|
1900
|
|
|
Notes
|
|
1- All Dimensions are given in inches unless otherwise stated
|
|
2- All weights are approxirnate
|
|
Ordering Instructions
|
|
When ordering or requesting quotations on the Junk Master, please specify :
|
|
1- Body series
|
|
2- Hole opening size
|
|
3- Pilot hole size
|
|
4- Top and bottem connections, if other than standard
|
|
5- Fishing neck diameter, if other than standard
|
|
6- Type of formation (soft, medium)
|
