Product Description
12 degree 32mm Knock on The Cross Bits Tapered Drill Bit Quarry Mining Drilling
Made with high quality of raw material through special heat treatment, especially, tungsten carbide of tapered
button bits are from Boart long year, widely applied in Hand Hold ( short-hole) drilling system for dimensional
stone quarrying. At now, we are exporting the huge qty of Q7- 33- 7 22-80, Q9 -45 -12 22- 71 for Indian quarry
and Norway, Finland quarry.
Diameter of bits from 30mm to 50mm with 4, 6, 7, 11, 12 degree, premium alloy tapered drill steel with Hexagonal.
22mm and Hexagonal. 25mm, The deliver capacity are very strong and can completely meet customer's requirements
on delivery design, number of buttons is 4, 5, 6, 7, 8, 9, 7 buttons is very popular for hold held (short holes ) and blast drilling system.
| Product Name: |
Tungsten carbides tapered drill bit |
| Types |
Rock cross drill bit, Tapered cross bits, Tapered button bits/ 34mm button drill bit |
| Application:: |
Use in granite and marble quarry, gold mine, railway, tunnel, etc. for drilling |
| Feature: |
Tapered drill bits connect tapered drill steel of rock drill for drilling holes |
| Material: |
High quality carbide and high quality steel |
| MOQ: |
5pcs |
| We can design and manufacture according to your requirement of diameter, number air holes and carbide button shape. |
| Types of drill bits |
Diameter (mm) |
Taper Angle (Degree) |
Length (mm) |
| Tapered chisel bits |
20/22/28/30/32/34/36/38/40 |
4 degree/ 6 degree/ 7 degree/
11 degree/ 12 degree |
50/55/60/71/80 |
| Tapered cross bits |
24/26/28/30/32/33/34/35/36/3/
38/40/42/48/50/55 |
50/55/60/71/80 |
| Tapered button bits |
28/29/30/32/33/34/35/36/37/38/40/41/42/45 |
50/55/60/71/80 |
Main Products:
1-12 inch middle-low/high air pressure DTH hammers & bits
Big hole high air pressure DTH hammer using in water well, oil, gas and construction drilling
Eccentric overburden drilling Equipment
Hole opener bit
Rock thread bit (R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, GT60)
Extension Rod, M/F Rod, M/m Rod, Drift Rod,
Shank adapter, coupling sleeves and all kinds of adapters
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