Drop Center R32 76mm Button Bit with Straight Retrac Body Thread
Button Drill Bit for Geological Exploration
Our drill bit is made from top quality steel and tungsten carbide
as same as internationally well-known brand and apply
“hot-insertion” processing procedure to insert the buttons as same
as internationally well-known brand.
Product Description:
Retractable drill bit mainly used in rock with gap, and the rock
formation changeable, it’s mostly take drop center face with
retract design, and it’s more easily to disassemble the rods &
bits.
How to choose the bit tooth type:
Spherical buttons: The height of exposed teeth is low, mainly used
in the very hard rock formation above F14, to improve wear
resistance, to prevent the situation of debris, it should take
lower drilling speed.
Ballistic buttons: It can expose more height of buttons, mainly
used in soft rock and ordinary rock below F12, with quicker
drilling speed, but encountered hard rock, very easily to happen
buttons debris phenomenon.
Products Parameters:
| Product Name: | Thread Button Drill Bit |
| Diameter: | 76mm |
| Button Size: | Front 4*11 ,1*11mm Gauge 8*11mm |
| Thread: | R32 |
| Flushing Hole: | 4 Front and 0 Side |
| Application: | Button drill bits are used in granite and marble quarry, gold mine,
railway, tunnel, etc. for drilling |
| Weight: | 3.5 kg |
| Button Type: | Ballistic |
| Body Type: | Retrac |
| Face Type: | Drop Center |
| Material: | Alloy steel bar 45CrNiMoV and tungsten carbide tips YK05 |
| 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 |
Main Features:
1.Material:45CrNiMoV
2.Flushing Holes:4
3.More Thread Type:T38,T45,T51 etc
4.Carbide Length:0.5mm longer than other manufacturer so the
carbides won't fall.
Why we choose YK05 tungsten carbides:
1.high footage speed;
2.High wear resistance.
3.Suitalbe for 98% rocks.
Product Advantage:
1. Widely used drifting and tunneling
2. Bit face design is ideal for soft to medium rock formations
3. With retrac wings to help guide the bit in and out of the hole
4. Effective in straight hole drilling
Specification of other Retrac Button Bits:
| Thread R32 (1 1/4") |
| Dimensions D | | Flushing hole(mm) | | Buttons(mm) | | Angle | Class |
| mm | in | Front No Size | Gauge No Size | Front No Size | Gauge No Size | | |
| 45 | 1 3/4 | 1*5.5 | 2*5.5 | 2*9 | 5*11 | 30° | H |
| 48 | 1 7/8 | 2*6 | 1*5 | 2*9 | 5*11 | 30° | H |
| 51 | 2 | 2*6 | 1*5.5 | 2*10 | 5*11 | 30° | H |
| 43 | 1 2/3 | 2*5 | 2*5 | 2*8 | 6*9 | 30° | S |
| 45 | 1 3/4 | 2*5 | 2*5 | 2*9 | 6*10 | 30° | S |
| 48 | 1 7/8 | 2*5.5 | 2*5 | 2*9 | 6*10 | 30° | S |
| 43 | 1 2/3 | 3*4 | 2*5 | 3*8 | 6*10 | 30° | M |
| 45 | 1 3/4 | 3*5 | 1*5 | 3*8 | 6*10 | 30° | M |
| 48 | 1 7/8 | 3*5 | 1*5 | 3*9 | 6*10 | 30° | M |
| 54 | 2 1/8 | 3*6 | 1*5.5 | 3*10 | 6*11 | 35° | M |
| 45 | 1 3/4 | 3*5 | 1*5 | 3*8 | 6*10 | 30° | M |
| 48 | 1 7/8 | 3*5 | 1*5 | 3*9 | 6*10 | 30° | M |
| 51 | 2 | 3*5.5 | 1*5.5 | 3*9 | 6*10 | 35° | M |
| 54 | 2 1/8 | 3*6 | 1*5.5 | 3*10 | 6*11 | 35° | M |
| 57 | 2 1/4 | 3*6 | 1*6 | 3*10 | 6*11 | 35° | M |
| 64 | 2 1/2 | 3*7 | 1*6 | 4*10 | 6*11 | 35° | M |
