R35 76mm Retrac Bit Hard Rock Drill Bit of Drop Center and
Ballistic Insert Buttons
We are one of the professional manufacturers & suppliers of rock
drilling tools, tungsten carbide button bits, DTH bits, DTH
hammers, rock tools, coal mining tools, mining rock tools,
quarrying tools, machine tools, DTH hammers & bits, retrac button
bits, thread button bits, tapered button bits, chisel bits, cross
bits, thread cross bits, tapered cross bits, shank adapter, shank
adaptors, thread bits, taper bits, drill rod, drill bits, rock
bits, mining bits, integral drill steel, tapered drill rods, thread
drill rods, M-F (male-female) rods, extension rods, integral drill
rods, pneumatic drill rods, self-drilling anchor, drifter rods,
hollow drill steels, shoulder drive drilling, drifting and
tunneling, bench and production drilling, furnace tapping tools,
down the hole drilling, coal cutter pick-shaped bits.
Bit Face Shape | Introduction |
| Drop Center Face | For high penetration rates in soft to medium hard and fissured rock
formations,
Low to medium air pressures. Maximum hole deviation control. |
| Concave Face | The all-round application bit face specifically for medium hard and
homogeneous rock formations.
Good hole deviation control and good fishing capacity. |
| Convex Face | For high penetration rates m soft to medium-hard with low to medium
air pressures.
It is the most resistance to steel wash. And many reduce the load
and wear on the gauge buttons.
But poor hole deviation control. |
| Double Gauge Face | This kind face shape is suitable for fast penetration rates in
medium to hard rock formations.
Designed for high air pressures and good resistance to steel wash
step gauge bit. |
| Flat Face Bit | This kind of face shape is suitable for hard to very hard and
abrasive rock formations in applications with high air pressure.
Good penetration rates are resistance to steel wash. |
Products Parameters:
| Product Name: | Button Drill Bit |
| Diameter: | 76mm |
| Button Size: | Front 1*11mm ,4*11mm, Gauge 8*12mm |
| Thread: | R35 |
| 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: | 3.3 kg |
| Button Type: | Domed |
| 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 |
Product Advantage:
1. Widely used drifting and tunneling
2. Bit face design is ideal for medium-hard to hard abrasive rock
3. Color: Green,Blue or Based on Customer requirements
Specification of other Thread Button Bits:
| Type | Dimensions | Flushing holes | Buttons(mm) | Angle | Class |
| mm | in | Front No Size | Gauge No Size | Front No Size | Gauge No Size |
| Standard | 89 | 3 1/2 | 2x12 | 2x7 | 6x12 | 8x14 | 35° | H |
| Standard | 102 | 4 | 2x14 | - | 6x13 | 8x14 | 35° | H |
| Flat | 115 | 4 1/2 | 4x13 | - | 6x14 | 8x16 | 35° | H |
| Drop Center | 89 | 3 1/2 | 4x10 | - | 6x12 | 8x14 | 35° | M |
| Drop Center | 102 | 4 | 4x11 | - | 6x13 | 8x14 | 35° | M |
| Drop Center | 115 | 4 1/2 | 4x13 | - | 6x14 | 8x16 | 35° | M |
| Standard | 127 | 5 | 3x13 | - | 10x14 | 9x16 | 35° | H |
| Drop Center | 127 | 5 | 3x13 | - | 9x14 | 9x14 | 35° | M |
| Retract | 127 | 5 | 3x13 | - | 9x14 | 9x16 | 35° | H |
| Flat+retract | 89 | 3 1/2 | 2x11 | 2x8 | 6x12 | 8x14 | 35° | H |
| Flat+retract | 102 | 4 | 4x11 | - | 6x13 | 8x14 | 35° | H |
| Flat+retract | 115 | 4 1/2 | 4x13 | - | 6x14 | 8x16 | 35° | H |
| Drop+retract | 89 | 3 1/2 | 4x10 | - | 6x12 | 8x14 | 35° | M |
| Drop+retract | 102 | 4 | 4x11 | - | 6x13 | 8x14 | 35° | M |
| Drop+retract | 115 | 4 1/2 | 4x13 | - | 6x14 | 8x16 | 35° | M |
| Drop+retract | 127 | 5 | 3x13 | - | 9x14 | 9x14 | 35° | M |
| Reaming tools | 152 | 6 | 5x10 | 2x10 | 2x14 | 20x14 | 35° | - |
