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Taper button bit as a small hole bit is designed specifically for air leg or hand-held jack hammer drillers in quarrying and mining operations.
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Manufactured with advanced drilling tool technology, these tapered bits feature a 30% increase in wear resistance, offering longer service life across various rock types.
Technical Description
Connect Shank: Φ25
Bit Diameters: 36mm, 38mm, 41mm, 43mm
Tapered Connection: 7 degree, 12 degree etc.
Material: Alloy Steel Bar 45CrNiMoV, 50R61
Tips: Tungsten Carbide YK05 or T6
Button & Face: Ballistic Shape / Flat Face
Button Quantity: 6, 7, 9 pcs
Specifications Table
| Diameter |
Length |
No. of buttons |
Buttons x Diameter |
Gauge Angle |
Button Angle |
Flushing Hole |
Weight (kg) |
| mm |
inch |
mm |
inch |
gauge |
center |
Side |
Center |
| 41 | 1 5/8" | 71 | 2 51/64" | 7 | 5×9 | 2×8 | 40° | - | 1 | 1 | 0.4 |
| 41 | 1 5/8" | 71 | 2 51/64" | 7 | 5×9 | 2×8 | 40° | - | 1 | 1 | 0.4 |
| 41 | 1 5/8" | 71 | 2 51/64" | 9 | 6×9 | 3×7 | 40° | - | 1 | 3 | 0.4 |
| 41 | 1 5/8" | 71 | 2 51/64" | 6 | 4×9 | 2×8 | 35° | - | 1 | 1 | 0.2 |
| 43 | 1 11/16" | 71 | 2 51/64" | 9 | 6×9 | 3×7 | 40° | - | 1 | 3 | 0.5 |
| 43 | 1 11/16" | 71 | 2 51/64" | 6 | 4×9 | 2×8 | 35° | - | 1 | 1 | 0.3 |
| 36 | 1 13/32" | 71 | 2 51/64" | 7 | 5×9 | 2×7 | 35° | 15° | 1 | 1 | 0.3 |
| 38 | 1 1/2" | 71 | 2 51/64" | 7 | 5×9 | 2×7 | 40° | 15° | 1 | 1 | 0.4 |
| 41 | 1 5/8" | 71 | 2 51/64" | 7 | 5×9 | 2×7 | 40° | 15° | 1 | 1 | 0.4 |
Frequently Asked Questions
What is the difference between a taper button bit and a thread button bit?
Taper button bits are designed for small hole drilling and utilize a taper match with the rod, typically used with air leg or hand-held jack hammers. Thread button bits are used for long hole drilling and feature a threaded connection.
What materials are used to ensure the durability of these bits?
The bits are constructed using high-quality Alloy Steel Bars (45CrNiMoV or 50R61) and reinforced with Tungsten Carbide Tips (YK05 or T6) for maximum wear resistance.
Which taper angles are commonly available?
The most common tapered connections are 7 degrees and 12 degrees, though other angles can be matched depending on the specific drilling equipment requirements.
Are these bits suitable for all rock types?
Yes, the 30% increase in wear resistance makes these tapered bits suitable for a wide range of rock formations encountered in mining and quarrying.
What drilling equipment is compatible with hex 25 drill rods?
These bits are primarily used with pneumatic air leg drills or manual hand-held jack hammer drillers that accept a Φ25 shank size.
How does button quantity affect drilling performance?
The bits come in 6, 7, or 9 button configurations. Generally, more buttons provide a finer crushing action and can be more effective in harder rock formations, while the face design ensures efficient flushing.
KAT DRILLING
