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Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.
We manufacture various tapered button bits in different degrees as below:
| For 22 mm (7/8") rod. 11° taper. Short Skirt. | ||||||||
|---|---|---|---|---|---|---|---|---|
| Diameter | Buttons | Flushing hole | Length (mm) | Part Number | Weight (Kg) | |||
| mm | inch | Gauge | Front | Side | Front | |||
| 32 | 1 1/4 | 3x8 | 2x7 | 1 | 1 | 50 | TB32H22S11C321 | 0.22 |
| 32 | 1 1/4 | 4x7 | 2x7 | 1 | 1 | 50 | TB32H22S11C421 | 0.29 |
| 32 | 1 1/4 | 5x7 | 2x7 | 1 | 1 | 50 | TB32H22S11C521 | 0.35 |
| 32 | 1 1/4 | 6x7 | 2x7 | 1 | 1 | 50 | TB32H22S11C621 | 0.35 |
| 32 | 1 1/4 | 6x7 | 2x7 | 1 | 2 | 50 | TB32H22S11C622 | 0.35 |
| 34 | 1 11/32 | 3x8 | 2x7 | 1 | 1 | 50 | TB34H22S11C321 | 0.39 |
| 34 | 1 11/32 | 4x8 | 2x7 | 1 | 2 | 50 | TB34H22S11C422 | 0.39 |
| 34 | 1 11/32 | 5x7 | 2x7 | 1 | 1 | 50 | TB34H22S11C521 | 0.40 |
| 35 | 1 3/8 | 6x7 | 2x7 | 1 | 2 | 50 | TB35H22S11C622 | 0.41 |
| 36 | 1 27/64 | 3x9 | 1x8 | 1 | 1 | 50 | TB36H22S11C311 | 0.42 |
| 36 | 1 27/64 | 3x9 | 2x7 | 1 | 1 | 50 | TB36H22S11C321 | 0.42 |
| 36 | 1 27/64 | 4x8 | 2x7 | 1 | 1 | 50 | TB36H22S11C421 | 0.42 |
| 36 | 1 27/64 | 4x8 | 2x7 | 1 | 2 | 50 | TB36H22S11C422 | 0.45 |
| 36 | 1 27/64 | 5x8 | 2x7 | 1 | 1 | 50 | TB36H22S11C521 | 0.45 |
| 36 | 1 27/64 | 5x8 | 2x7 | 1 | 2 | 50 | TB36H22S11C522 | 0.45 |
| 38 | 1 1/2 | 3x9 | 1x9 | 1 | 1 | 50 | TB38H22S11C311 | 0.45 |
| 38 | 1 1/2 | 3x9 | 2x7 | 1 | 1 | 50 | TB38H22S11C321 | 0.45 |
| 38 | 1 1/2 | 5x9 | 2x7 | 1 | 1 | 50 | TB38H22S11C521 | 0.45 |
| 38 | 1 1/2 | 5x9 | 2x7 | 1 | 2 | 50 | TB38H22S11C522 | 0.45 |
| 40 | 1 37/64 | 3x9 | 1x9 | 1 | 1 | 50 | TB40H22S11C311 | 0.48 |
| 40 | 1 37/64 | 3x9 | 2x8 | 1 | 1 | 50 | TB40H22S11C321 | 0.48 |
| 40 | 1 37/64 | 5x9 | 2x8 | 1 | 1 | 50 | TB40H22S11C521 | 0.48 |
| 40 | 1 37/64 | 5x9 | 2x8 | 1 | 2 | 50 | TB40H22S11C522 | 0.48 |
| 41 | 1 5/8 | 5x9 | 2x8 | 1 | 2 | 50 | TB41H22S11C522 | 0.48 |
Tapered button bits are widely used in rock drilling, mining, quarrying, tunneling, and construction projects. They perform exceptionally well in hard to medium-hard rock formations due to their high penetration rate and wear resistance.
The taper angle of the button bit must match the taper degree of your drill rod precisely. Common industry degrees include 7°, 11°, and 12°. Choosing the correct match ensures a secure connection and prevents premature bit detachment during high-impact drilling.
We offer head diameters ranging from 26mm up to 60mm. The compatible hexagonal shank sizes typically include Hex. 19mm, Hex. 22mm, and Hex. 25mm to suit various handheld and machine-mounted rock drills.
Button type carbide inserts offer superior durability, speed, and efficiency in hard and abrasive rock formations. Chisel and cross bits are typically suited for softer or fractured rock structures where impact resistance is preferred over pure penetration speed.
Flushing holes are designed to quickly clear rock debris from the drilling face. By positioning side and front flushing holes optimally, our design prevents clogging, lowers bit temperature, and ensures smooth continuous drilling.
