SD12 Bit - 15-3/4" Convex Ballistic
CONCAVE: The concave bit design is an excellent all around bit, suitable for soft and hard formations. The cone shaped face design provides good stability during drilling, allowing for straighter holes while reducing equipment vibration. The carbide configuration design gives added penetration in many formations.
CONVEX: Suitable for most drilling application, particularly hard, abrasive rock to give a combination of speed and good service life.
FLAT FACE: Used for general purpose drilling, the flat face design is considered effective in very broken ground as well as hard formations that tend to overdrill.
|
Minimum Hole Size |
in |
11-7/8 |
|
Number of Splines |
|
8 |
|
Height of Foot Valve above Strike Face |
in |
1.700 |
|
Length of Shank |
in |
7.12 |
|
Running Surface Diameter |
in |
N/A |
|
Diameter |
in |
15-3/4 |
|
Carbide Insert Gauge |
in |
12 x 3/4 |
|
Carbide Insert Face |
in |
35 x 3/4 |
|
Carbide Type |
|
Ballistic |
|
Weight |
lbs |
452 |
