Chevron Step Drag Bit Carbide Blade Drag Bit 2 3/8"~6 5/8" API reg
A drag bit is simply a series of blades (usually three or four in
number) which produce a shearing
action when rotated. They are comparatively inexpensive due to the
lack of moving parts and theycan penetrate softer formations such
as stiff clays and mudstones very quickly.The drag bit
usually used in very soft to medium formation when the dth hammer
as the tricone bit, lose of
their effectiveness.The cleaning of the hole is realized by the
injection of air or water.
There are two forms of drag bits:
- "Step" type for soft grounds
- "Chevron" type for medium hard grounds
Specification of three wings drag bit :
1) Drag bits are made according to API standard or no thread
standard just welding.
2) Various step and chevron drag bits are available from 3 inch to
17 1/2 inch. (normal small size are 3",3
3) 4",3 7/8",4 3/4",4 5/8",5 7/8",8 1/2" to 17 1/2"and so on).
3) There is very good feedback from our customers because of the
quality and price.
4) Different drag bits can be made according to your drawings or
|Drag Bit Size(Inch)||2"(51MM)~17 1/2"(444.5MM)|
|Drag Bit Connection||2 3/8"~6 5/8" API reg pin|
|Make up Torque||4-4.8/6-7.5/9.5-12/16-22/38-43/46-54|
|Drag Bit Formation||soft ,medium soft ,hard,medium hard|
We can also provide related products DTH button bits, ODEX,
symmetric overburden systems, slide block drilling systems, etc and
DTH drilling pipes for various thread API REG, API IF, BECO, etc
SOLLROC products are made of high quality steel and all spares are
inspected strictly at every production steps before shipping. We
have quickly responses for your complaint and suggestion.
Using plywood cases and pallet for seaworthy to protect products
and avoid the damagement during transportation by sea. Using
cartons and plywood cases for air worthy to less the weight and
save the freigth. Also we can customize package according to your
special requests. Special mark is available.
3-4 weeks after received payment in advance.
By air, by Express or by sea according to your requests.
SOLLROC is a leading manufacturer of rock drilling tools, like DTH
hammers and bits, DTH drill pipes, RC hammers and bits, tophammer
button bits, coupling, cross bits, drill rods located in Changsha,
We have rich experience in this field of DTH hammers and bits for
Owing to high quality, professional serivce and competitive price,
we have gotton good reputation from our customers all over the
world, such as France, Spain, Italy, South Africa, Australia, Iran,