Product Name:High Quality
Tapered Chisel Drill Bits and Cross Rock Bits
Bits Type:
- BitDesign:Chisel
Bit-A, B, C, D, E, F, G
- HeadDiameter :*0mm - *6mm (D)
- Taper:4.8°, 6°, 7 °, *1°, *2°
- Bottom Hole:
*2mm,*5mm (d)
- Bit Body: Short
skirt,Long skirt (H)
- Water Hole:2
- Material:High qualitytungstencarbide
Advantages &
Service
The advantage of
High Quality Tapered Chisel Drill Bits and Cross Rock
Bits
- Strict quality control
- More reasonable
factory price
- Better after-sales service
- Professional suggestion
- OEM service
Application:
TheHigh Quality
Tapered Chisel Drill Bits and Cross Rock Bits 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:
Advantages oftaper drill bits:Cheap in
price and theassorted
taper drill rods and rock drills, easy to carry and adequate for
various construction conditions. Matched with taper drill rods,
the taper drill bits
are widely used in drilling holes
with depth less than 5 meters and diameter ranged in ****6 mm by
light-duty rock drill.
Each oftaper drill bit is produced in different sizes and designs in
order to optimize their application to a broader scope of rock
drilling conditions and correspond to different job
requirements.
There are different taper degrees
fortaper drill bit
which are used for different rock
formations and rock drills.
Taper degree of *1°and *2° are common
on modern rigs. A narrow taper degree of 7° is used for low impact
rock drills and softer rock formations. This degree can also be
used if you have spinning problems when using *1° or *2°
equipment.
To ensure the normal service life,
thetaper drill
bitneed to be matched well
with taper drill rods, the taper degree must be the same between
taper drill bits and taper dill rods; the penetration depth of
taper drill rods which into the taper hole of taper
drill bits should be over *5mm,and the
head of the taper drill rods should not touch the bottom of the
taper of taper drill bits, otherwise the taper drill bits would be
lost easily during operation.
The operation for rock drill is also
important: before starting drilling, turning down the
air flow level of rock drill to reduce the damage to the
taperdrillbits which is resulted from the local high stress
suffered by the tungsten carbide. The taper bits should fully
penetrated into rocks before turning up the air flow back to the
normal level,
When the width of the edges flat top
is more than 3 mm, its
necessary to change or grind the
taperdrill bits in order to avoid low drilling speed and
short service life time
of taper drill bits. Once there is
abrasion for the taper onrock drill
bits, change or grind therock drill
bits timely, otherwise therock drill
bits would be seriously worn, drilling speed would be lowered and
the taper drill bits would even jammed.
Once encountering a steel bar or
other foreign materials during drilling, the drilling position
should be adjusted to avoid breakage of the head of
rockdrillbits.
When the rock drilling is prone to
jamming, the rock bits should be replaced to taper cross drill bits
or taper button bits.
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.
