Small Hole Tapered Button Bits
A:Small Hole Drilling Hex Drilling Button Bits: 32mm, 33mm, 35mm,
36mm, 38mm, 40mm, 41mm, Head Diameters Available.
B:Small Hole Tapered Button Bits Taper Degrees: 6, 7, 11, 12.
C:Numbers of Tungsten Carbide Tips:4, 7, 8.
D: Available Diameters of Each Button Tips:Gauge
Buttons:7mm,8mm,9mm,Front Buttons:6mm,7mm,8mm.
| Product Name: | 30-40mm 7 degree taper rock drill bit |
| Types | Tapered chisel bits, Tapered cross bits, Tapered button bits |
| Application:: | Tapered drill bits are used 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 42CrMo cold forging steel
body |
| MOQ: | No requirement for testing and trial order |
| We can design and manufature according to your requirment of
diameter, number air holes and carbide button shape. |
| Types of drill bits | Diameter (mm) | Taper Angle (Degree) | Length (mm) | Weight (kg) |
| 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 | 0.15 - 0.45 |
| Tapered cross bits | 24/26/28/30/32/33/34/35/36/3/38/40/42/48/50/55 | 50/55/60/71/80 | 0.18 - 0.7 |
| Tapered button bits | 28/29/30/32/33/34/35/36/37/38/40/41/42/45 | 50/55/60/71/80 | 0.2 - 0.5 |
All-round bit with six gauge buttons for medium hard to hard rock
forma- tions. Front and side flushing. Inclined front buttons.
All-round bit for soft to hard rock formations.Two front flush- ing
holes for optimal speed and less hole deviation. Inclined front
buttons.
All-round drill bit for soft, medium and hard rock with excellent
flushing capacity. Front and side flushing.
All-round drill bit for soft, medium and hard rock with excellent
flushing capacity. Front and side flushing.
All-round drill bit for medium hard to hard rock forma- tions.
Front and side flushing.
For hard and abrasive rock. Front and side flushing.
Please observe that all button bits are manufactured over-sized
0,5–1,0 mm, meaning that for example a 36,0 mm bit is at least 36,5
mm as new.This is done because of the fast initial wear on button
bits.
It is important to consider that the drilled hole could vary in
size due to drilling conditions, drilling practices and ground
formation.
