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Tel:0086-18959243380
Addr: Room 805 C1 Wanda Plaza, No.5 Jinzhong Road, Huli District, Xiamen, China
Q9-64-T38 Threaded Button Bit
- Code No.: Q9-64-T38
- Diameter: 64mm
- Length: 130mm
- Gauge Buttons: 12mm*6
- Front Buttons: 11mm*3
- Skirt Design: Standard
- Carbide Design: Dome
- Face Design: Uniface
- Water Holes: 3 on front
- Weight: 1.79kg
Rock drilling tools factory ProDrill manufactures rock drill bits: T38 Threaded Button Bits is the most important size for benching and long-hole drilling underground.
We will choose to use tungsten carbide of T6，featuring good wear-resistance and toughness.
This type of carbide has already been proved to be the best in world and been competing with those big names worldwide for quite a long time.
Meanwhile，we will choose to use superior steel suitable for hot insertion technology, by which the drilling bits body will hold the carbide buttons so tightly that reduce the risk of buttons’ dropping out of the holes.
In order to better resist the abrasiveness of rock, spherical shape will be a good option for the carbide if high speed is not a necessity.
Diameter 64mm 76mm, 89mm,
Skirt body: retrac, and normal,
Face type: flat, uniface, drop center
Carbide shape: Dome, ballistic, semi-ballistic
Used in bench drilling, underground long hole drilling to match extension MF rod, MM rod heavy duty top hammer.
New Sandvik UNIFACE design stands out
• Raised center ensures center buttons hit the rock first, resulting in even better collaring and straighter holes.
• Optimized number and placement of flushing holes (depending on diameter size, either three or four), with equal distance between flushing grooves evenly distributing air flow and reducing wear on gauge buttons.
• No face slots ensures that the air is more evenly distributed around the bit, resulting in a more even wear. It also facilitates better clearing of cuttings in front of the bit and makes it possible to evenly place the buttons.
• The evenly-placed buttons enable the UNIFACE bit to cover the entire cutting area with just 90 degrees’ rotation. This means that there is no double breaking of the same rock or missed breaking, enabling more even wear of the buttons and resulting in increased button life. The even load distribution on all buttons also reduces the risk of button breakage.
The tool life improvements delivered by the Sandvik UNIFACE design also yield significant health and safety benefits, since operators spend less time changing tools. “The new bit design essentially delivers more drill meters per shift compared with a standard bit, thanks to less frequent bit changes,” says Johan Bergquist, Global Product Line Manager DTH Tools, Sandvik Mining and Rock Technology. “With UNIFACE, we launch an updated and improved DTH drill bit design. The result is a design with a number of features that are new to the industry and that significantly increase bit life, while maintaining penetration rate.”
9 Dome carbide inserts T38 threaded drill bits with uniface design, 64mm diameter and normal skirt body for bench drilling and underground long hole drilling.
Uni-face design detail of T38-64 threaded button bit, match with extension drill rods.
For more details please view PDF online: T38 Drill Bits for Bench Drilling, Long Hole Drilling Underground Catalogue
