Hard Rock Small Hole Air Drill Tapered Button Bits

FOB Reference Price:Get Latest Price
US $1-100 / Unit | 50 Unit/Units (Min. Order)
Supply Ability:
5000 Unit/Units per Month
Port:
Xiamen
Overview
Quick Details
Place of Origin:
Fujian, China (Mainland)
Brand Name:
BESTLINK
Model Number:
BS Series
Type:
Gun Drill Bit
Material:
High Carbon Steel
Use:
Masonry Drilling
Color:
Red
keyword:
Button Bits
Packaging & Delivery
Packaging Details
Wooden cases/Cartons

Tungsten Carbide Taper Shank Button Drill Bit for Rock Mining

(1)Taper angle: 4° , 4° 46, 6° , 7° , 11° , 12°
(2)Models: Chisel/cross/button bit
(3)Diameter: 20-45 mm
(4)Button bit shape: Spherical/parabolic
(5)Socket inside diameter: 15/19/22/25mm

Our tapered drill bits are made with high quality alloy steel bar and tungsten carbides, through heat treatment.

1. Tapered chisel bit
Widely used in drilling holes with depth less than 5 meters and diameter ranged in 20-45 mm by light-duty rock drill, like Y6.

DescriptionDiameterLengthWater hole
Taper degree a=4°,6°,7°,11°,12°;  Socket inside d=15,19,22,25mm

mmmm2
20652
23652
25692
28602
3055 882
3255 64 71 802
3471 802
36742
38742
40742
42742
45742




2. Tapered cross bit
Used under any rock drilling condition and mainly used for hard or very hard rock formation because of it's comprehensive adaptability. Compared with taper chisel bits, taper cross bits have a better drilling performance because of carbide tips on cross bits doubled, which means carbides shape are cross type on drill bits. Taper cross bit is mainly used for hard or very hard rock formation.


DescriptionDiameterLengthWeight
Taper degree a=6 °,7°,11°,12° ; Socket inside d=19,22,25mmmmmmkg
2871 800.19
2971 800.2
3050 67 71 800.3
3250 67 71 800.3
3371 800.32
3467 71 800.34
3567 71 80 0.35
3671 800.36
3867 71 800.42
4071 800.43
41710.45
4269 800.46
44800.47
45800.5




3. Tapered Button Bits
Comparing with taper chisel and cross bits, button bits have higher technology, much longer primary drilling time and higher drilling efficiency. According to the tungsten carbide insert, button bits can be divided into types of hemispherical, conical and parabolic button, etc.
Button bits with hemispherical button is for high bearing capacity and abrasive resistance while conical button and parabolic button are for high drilling speed and low abrasive resistance.

DescriptionDiameterLengthNo. of buttonWeight
Taper Angle a=4°46″,6 °,7°,11°,12°; Socket inside d=19,22,25mmmmmmpcskg
285040.2
29504 5 6 70.2
3050 805 6 7 80.2 0.3
3250 55 71 806 7 8 90.2 0.22 0.3
3350 55 71 806 7 90.2 0.3 0.36
3450 557 80.22 0.3
3555 71 804 5 6 70.22 0.3 0.37
3650 5570.3 0.35
37554 6 70.3
3850 554 6 70.25 0.35
4050 5570.35
4150 55 714 50.35
42506 70.4
4550 55 71 6 7 8 90.5