R28 R32 Threaded Button Bits for Rock Drilling - 33-76mm Diameter with Ballistic Carbides for Mining and Quarrying
Price:
$10.60/pieces 1-999 pieces
MOQ:
Negotiable
Delivery Time:
Negotiable
Brand:
Kelleg
Product Description
Product Overview
High-performance R28 and R32 threaded button bits designed for demanding rock drilling applications in coal mining, quarrying, and construction projects. Manufactured from premium carbide materials and special steel for exceptional durability and drilling efficiency.
Applications
Widely used in metallurgical mines, geological exploration, water conservancy construction, electric power projects, transportation infrastructure, tunnel construction, quarries, national defense stone engineering, and various industrial fields.
Technical Specifications
R25 Threaded Button Bit - Spherical Buttons
| Bit Dia. (mm) | Bit Dia. (inch) | Front No.×Button Dia. | Gauge No.×Button Dia. | Angle | Front Flushing Hole | Side Flushing Hole | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 33 | 1 19/64 | 2×7 | 5×7 | 35° | 1 | 1 | 0.4 |
| 35 | 1 3/8 | 2×7 | 5×8 | 35° | 1 | 1 | 0.4 |
| 38 | 1 1/2 | 2×7 | 5×8 | 30° | 1 | 1 | 0.5 |
| 41 | 1 5/8 | 2×8 | 5×9 | 35° | 1 | 1 | 0.6 |
| 45 | 1 3/4 | 2×9 | 4×11 | 35° | 1 | 2 | 0.6 |
R25 Threaded Button Bit - Parabolic Buttons
| Bit Dia. (mm) | Bit Dia. (inch) | Front No.×Button Dia. | Gauge No.×Button Dia. | Angle | Front Flushing Hole | Side Flushing Hole | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 33 | 1 19/64 | 2×7 | 5×7 | 35° | 1 | 1 | 0.4 |
| 35 | 1 3/8 | 2×7 | 5×9 | 25° | 1 | 1 | 0.4 |
| 38 | 1 1/2 | 2×7 | 5×9 | 40° | 1 | 1 | 0.5 |
| 41 | 1 5/8 | 2×8 | 5×9 | 40° | 1 | 1 | 0.6 |
| 45 | 1 3/4 | 2×9 | 5×10 | 35° | 1 | 2 | 0.6 |
R28 Threaded Button Bit - Spherical Buttons
| Bit Dia. (mm) | Bit Dia. (inch) | Front No.×Button Dia. | Gauge No.×Button Dia. | Angle | Front Flushing Hole | Side Flushing Hole | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 37 | 1 29/64 | 2×7 | 5×9 | 30° | 1 | 1 | 0.5 |
| 38 | 1 1/2 | 2×8 | 4×9 | 30° | 1 | 2 | 0.6 |
| 41 | 1 5/8 | 2×8 | 5×9 | 35° | 1 | 1 | 0.7 |
| 43 | 1 11/16 | 2×9 | 5×9 | 35° | 1 | 2 | 0.8 |
| 45 | 1 3/4 | 2×9 | 5×10 | 30° | 1 | 2 | 0.9 |
R28 Threaded Button Bit - Parabolic Buttons
| Bit Dia. (mm) | Bit Dia. (inch) | Front No.×Button Dia. | Gauge No.×Button Dia. | Angle | Front Flushing Hole | Side Flushing Hole | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 37 | 1 29/64 | 2×7 | 5×9 | 30° | 1 | 1 | 0.5 |
| 38 | 1 1/2 | 2×8 | 4×9 | 30° | 1 | 2 | 0.6 |
| 41 | 1 5/8 | 2×8 | 5×9 | 35° | 1 | 1 | 0.7 |
| 43 | 1 11/16 | 2×9 | 5×9 | 35° | 1 | 2 | 0.8 |
| 45 | 1 3/4 | 2×9 | 5×10 | 30° | 1 | 2 | 0.9 |
| 48 | 1 7/8 | 3×8 | 6×9 | 35° | 1 | 3 | 1.0 |
R32 Threaded Button Bit - Spherical Buttons
| Bit Dia. (mm) | Bit Dia. (inch) | Front No.×Button Dia. | Gauge No.×Button Dia. | Angle | Front Flushing Hole | Side Flushing Hole | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 41 | 1 5/8 | 2×8 | 5×9 | 35° | 1 | 1 | 0.7 |
| 43 | 1 11/16 | 2×9 | 5×9 | 35° | 1 | 2 | 0.7 |
| 45 | 1 3/4 | 3×8 | 6×10 | 30° | 3 | - | 0.8 |
| 48 | 1 7/8 | 2×9 | 5×11 | 35° | 1 | 1 | 0.9 |
| 51 | 2 | 3×9 | 6×10 | 35° | 3 | - | 1.0 |
| 57 | 2 1/4 | 3×9 | 6×11 | 35° | 3 | - | 1.3 |
| 64 | 2 1/2 | 3×10,1×10 | 6×11 | 35° | 3 | - | 1.6 |
| 76 | 3 | 4×11 | 8×11 | 40° | 2 | - | 2.6 |
R32 Threaded Button Bit - Parabolic Buttons
| Bit Dia. (mm) | Bit Dia. (inch) | Front No.×Button Dia. | Gauge No.×Button Dia. | Angle | Front Flushing Hole | Side Flushing Hole | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 41 | 1 5/8 | 2×8 | 5×9 | 40° | 1 | 1 | 0.7 |
| 43 | 1 11/16 | 2×9 | 5×9 | 40° | 1 | 2 | 0.7 |
| 45 | 1 3/4 | 3×8 | 6×9 | 40° | 3 | 1 | 0.8 |
| 48 | 1 7/8 | 2×9 | 5×11 | 35° | 1 | 1 | 0.9 |
| 51 | 2 | 3×9 | 6×10 | 40° | 3 | 1 | 1.0 |
| 54 | 2 1/8 | 3×9 | 6×10 | 40° | 3 | 1 | 1.0 |
| 57 | 2 1/4 | 3×9 | 6×11 | 35° | 3 | - | 1.3 |
| 64 | 2 1/2 | 4×10 | 8×10 | 40° | 2 | - | 1.6 |
Company Profile
Kelleg is a market-oriented enterprise integrating R&D, design, procurement, sales, and customer service. We specialize in geotechnical anchoring and are committed to building a professional service platform that provides system solutions, product supply, and technical support. Our professional teams offer comprehensive services including pre-sale technical consultation, product selection guidance, order management, and on-site technical support.
Frequently Asked Questions
1: Is there a minimum order quantity?
We generally have no minimum order quantity.
2: Do you have the inspection procedures?
100% strict inspection and testing for every order before packing.
3: How long is your delivery time?
1-3 days for the products in stock; regular order delivery in 2-3 weeks.
4: After Services:
- Our sales team will respond to your question within 24 hours (holidays excluded)
- Technical support will be available at any time
- Free replacement will be provided once the failure is confirmed caused by our product quality
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Kelleg International Trade (Shanghai) Co., Ltd.