5. OEM service
Application:
The*9mm T*1 Drop Center
Retrac Thread Rock Button Bit are
widely applicable to mining industry, tunneling and underground
engineering, open pit, construction drill, blast industry,
civil engineering operations,
road, gas line, pipe and trench projects, quarry work, rock
anchoring and ground stabilization projects, water well
industry, etc,.
Usage:
Type of Buttons:
Semispherical :
This type is suitable for
very abrasive and very hard rock formations.
Ballistic / Parabolic
:
This type is suitable for
medium abrasive and medium hard rock formations.
Conical :
This type is suitable for
soft abrasive and soft rock formations.
The selection of Bit Face
Type:
Drop center face bit:
It has high penetration rates in
soft to medium hard and fissured rock formation, and has better
hole deviation control.
Concave face bit:
Its suitable for medium hard and
similar rock formations, it has good hole deviation control and
good flushing capacity.
Convex face bit:
It has high penetration rates in
soft to medium-hard rock formation. It has the best performance
of resistance to steel wash, and reduce the load and wear on
the gauge s, but it has poor hole deviation
control.
Flat face bits:
Its suitable for hard to very
hard and abrasive rock formations.
The selection of Bit
skirt:
Retrac skirt:
This type design can get better
hole deviation control while drilling, it can get bit back
easily while the bit is jammed during drilling.
Package &
Transportation
Package: Wooden box.
Transportation: Sea freight for
bulk order. Air delivery for samples.
Buying Guide
-
Confirm the detail
measures, quantity, colors and package.
-
*0% deposit before
production, we accept T/T, Western Union.
-
Start production after
getting deposit, generally it will take about *5 days to
finish.
-
We send pictures to
customers for confirmation once its finished, customers
prepare the rest payment.
-
We send goods by sea, and
all of original documents by air to customers.
