Products Description
Are you still troubled by broken or chipped button bits, or short lifespan? We proudly introduce our high-quality thread button bits – precision-designed to maximize lifespan and improve drilling accuracy.
KATDRILLS threaded button bits
We manufacture various styles of thread button bits to suit different types of rocks.
With the top quality of alloy steels and the best carbides, we produce all threaded button bits by hot press technology and vacuum heat treatment process.

Parameters
| Thread Size: | R22, R25, R28, SR28, R32, SR32, R35, SR35, R38, T38, T45, T51, ST58, GT60, ST68 |
| Head diameters | 32mm - 152mm |
| Face designs: | Flat face, Drop center, Power face |
| Buttons: | Spherical buttons, Ballistic buttons, Parabolic Buttons |

Threaded button bits, as a rock drilling tool, are widely used in the following fields:
- Mining & Quarrying
- Construction & Infrastructure
- Tunnel & Underground Engineering
- Water Conservancy & Hydropower Projects
- Mining Blasting & Rock Splitting
- Road & Railway Construction
- Geotechnical Investigation & Exploration
Features
Threaded button bits are engineered with a suite of high-performance features to deliver exceptional drilling efficiency and extended service life. Key advantages include:
1.Precision Hot-Mounted Carbide Buttons: Tungsten carbide buttons are hot-mounted into the bit body with meticulous precision, ensuring tight integration and structural stability. This advanced mounting process enhances drilling accuracy while resisting wear, impact, and detachment-even under continuous heavy-load operation.
2.Premium-Grade Material Construction: Crafted from high-quality base materials paired with industrial-grade carbide buttons, these bits undergo rigorous quality control to guarantee consistent performance in harsh conditions (e.g., hard rock, high-abrasion formations, or high-speed drilling scenarios).
3.Application-Tailored Designs: A diverse range of configurations is available, each specifically tailored to match varying rock hardness, drilling methods (top-hammer/DTH), and project requirements. From soft formations to extreme hard rock, the specialized designs optimize penetration rate and bit longevity for every use case.
4.Maximized Drilling Speed & Efficiency: Engineered for rapid material removal, threaded drill bits deliver superior drilling speed without compromising precision. This translates to shorter project cycles, reduced downtime, and enhanced overall operational productivity.
5.Superior Cost-Effectiveness: Offering an optimal balance of performance, durability, and value, these drill bits minimize replacement frequency and maintenance costs. Their reliable performance across multiple applications makes them a cost-efficient solution for both small-scale projects and large-scale industrial operations.
|
High-quality cemented carbide |
Vacuum heat treatment |
|
|
|
|
Strict testing standards |
|
|
|
|
Specification
|
R22 Thread Button bits |
||||||||
|
Rock drill Bit |
Carbide dimension |
D |
Flushing hole |
|||||
|
Gauge |
Front |
|||||||
|
N0. |
mm |
N0. |
mm |
mm |
in |
Front |
Side |
|
|
|
5 |
7 |
2 |
7 |
32 |
1 1/4" |
1 |
1 |
|
5 |
8 |
2 |
7 |
34 |
1 11/32" |
1 |
1 |
|
|
5 |
8 |
2 |
7 |
35 |
1 3/8" |
1 |
1 |
|
|
5 |
8 |
2 |
7 |
38 |
1 1/2" |
1 |
1 |
|
|
5 |
9 |
2 |
9 |
41 |
1 5/8" |
1 |
1 |
|
|
5 |
10 |
2 |
8 |
43 |
1 11/16" |
1 |
1 |
|
|
5 |
10 |
2 |
9 |
45 |
1 3/4" |
1 |
1 |
|
|
R25 Thread Button bits |
||||||||
|
Rock drill Bit |
Carbide dimension |
D |
Flushing hole |
|||||
|
Gauge |
Front |
|||||||
|
N0. |
mm |
N0. |
mm |
mm |
in |
Front |
Side |
|
|
7 buttons drill bits
|
5 |
7 |
2 |
7 |
32 |
1 1/4" |
1 |
1 |
|
5 |
7 |
2 |
7 |
33 |
1 5/16" |
1 |
1 |
|
|
5 |
8 |
2 |
7 |
35 |
1 3/8" |
1 |
1 |
|
|
5 |
8 |
2 |
7 |
36 |
1 13/32" |
1 |
1 |
|
|
5 |
9 |
2 |
7 |
38 |
1 1/2" |
1 |
1 |
|
|
5 |
9 |
2 |
9 |
41 |
1 5/8" |
1 |
1 |
|
|
5 |
10 |
2 |
8 |
43 |
1 11/16" |
1 |
1 |
|
|
5 |
10 |
2 |
9 |
45 |
1 3/4" |
1 |
1 |
|
|
5 |
11 |
2 |
9 |
48 |
1 7/8" |
1 |
1 |
|
|
5 |
11 |
2 |
10 |
51 |
2" |
1 |
1 |
|
|
9 buttons drill bits
|
6 |
9 |
3 |
8 |
45 |
1 3/4" |
3 |
1 |
|
6 |
9 |
3 |
9 |
48 |
1 7/8" |
3 |
1 |
|
|
6 |
10 |
3 |
9 |
51 |
2" |
3 |
1 |
|
|
6 |
10 |
3 |
10 |
57 |
2 1/4" |
3 |
1 |
|
|
6 |
10 |
3 |
10 |
60 |
2 3/8" |
3 |
1 |
|
|
R28 & SR28 Thread Button bits |
||||||||
|
Rock drill Bit |
Carbide dimension |
D |
Flushing hole |
|||||
|
Gauge |
Front |
|||||||
|
N0. |
mm |
N0. |
mm |
mm |
in |
Front |
Side |
|
|
7 buttons drill bits
|
5 |
8 |
2 |
7 |
36 |
1 13/32" |
1 |
1 |
|
5 |
8 |
2 |
8 |
38 |
1 1/2" |
1 |
1 |
|
|
5 |
9 |
2 |
9 |
41 |
1 5/8" |
1 |
1 |
|
|
5 |
10 |
2 |
8 |
43 |
1 11/16" |
1 |
1 |
|
|
5 |
10 |
2 |
9 |
45 |
1 3/4" |
1 |
1 |
|
|
5 |
11 |
2 |
9 |
48 |
1 7/8" |
1 |
1 |
|
|
8 buttons drill bits
|
6 |
8 |
2 |
8 |
43 |
1 11/16" |
2 |
0 |
|
6 |
9 |
2 |
9 |
45 |
1 3/4" |
2 |
0 |
|
|
9 buttons drill bits
|
6 |
9 |
3 |
8 |
45 |
1 3/4" |
3 |
1 |
|
6 |
9 |
3 |
9 |
48 |
1 7/8" |
3 |
1 |
|
|
6 |
10 |
3 |
9 |
51 |
2" |
3 |
1 |
|
|
R32 & SR32 Thread Button bits |
||||||||
|
Rock drill Bit |
Carbide dimension |
D |
Flushing hole |
|||||
|
Gauge |
Front |
|||||||
|
N0. |
mm |
N0. |
mm |
mm |
in |
Front |
Side |
|
|
7 buttons drill bits
|
5 |
9 |
2 |
9 |
41 |
1 5/8" |
1 |
1 |
|
5 |
10 |
2 |
8 |
43 |
1 11/16" |
1 |
1 |
|
|
5 |
10 |
2 |
9 |
43 |
1 11/16" |
1 |
1 |
|
|
5 |
10 |
2 |
9 |
45 |
1 3/4" |
1 |
1 |
|
|
5 |
11 |
2 |
9 |
48 |
1 7/8" |
1 |
2 |
|
|
5 |
11 |
2 |
10 |
51 |
2" |
1 |
1 |
|
|
8 buttons drill bits
|
6 |
8 |
2 |
8 |
41 |
1 5/8" |
2 |
1 |
|
6 |
8 |
2 |
8 |
43 |
1 11/16" |
2 |
1 |
|
|
6 |
9 |
2 |
9 |
45 |
1 3/4" |
2 |
1 |
|
|
6 |
10 |
2 |
9 |
48 |
1 7/8" |
2 |
1 |
|
|
6 |
11 |
2 |
9 |
51 |
2" |
2 |
1 |
|
|
9 buttons drill bits
|
6 |
9 |
3 |
7 |
43 |
1 11/16" |
3 |
1 |
|
6 |
9 |
3 |
8 |
45 |
1 3/4" |
3 |
1 |
|
|
6 |
10 |
3 |
8 |
45 |
1 3/4" |
3 |
1 |
|
|
6 |
9 |
3 |
9 |
48 |
1 7/8" |
3 |
1 |
|
|
6 |
10 |
3 |
8 |
48 |
1 7/8" |
3 |
1 |
|
|
6 |
11 |
3 |
9 |
51 |
2" |
3 |
1 |
|
|
6 |
10 |
3 |
10 |
51 |
2" |
3 |
1 |
|
|
6 |
10 |
3 |
9 |
54 |
2 1/8" |
3 |
1 |
|
|
6 |
10 |
3 |
10 |
57 |
2 1/4" |
3 |
1 |
|
|
6 |
11 |
3 |
11 |
64 |
2 1/2" |
3 |
1 |
|
|
Flat Face button bit
|
8 |
10 |
4 |
10 |
64 |
2 1/2" |
2 |
0 |
|
8 |
11 |
5 |
11 |
76 |
3" |
2 |
0 |
|
|
Drop Center Button bit Normal Skirt
|
6 |
10 |
3 / 1 |
10 / 9 |
64 |
2 1/2" |
3 |
0 |
|
6 |
13 |
3 / 1 |
11 / 10 |
76 |
3" |
3 |
0 |
|
|
6 |
14 |
3 / 2 |
13 / 10 |
89 |
3 1/2" |
3 |
0 |
|
|
R35 & SR35 Thread Button bits |
||||||||
|
Rock drill Bit |
Carbide dimension |
D |
Flushing hole |
|||||
|
Gauge |
Front |
|||||||
|
N0. |
mm |
N0. |
mm |
mm |
in |
Front |
Side |
|
|
7 buttons drill bits
|
5 |
10 |
2 |
9 |
43 |
1 11/16" |
1 |
1 |
|
5 |
10 |
2 |
9 |
45 |
1 3/4" |
1 |
2 |
|
|
5 |
11 |
2 |
9 |
48 |
1 7/8" |
1 |
2 |
|
|
5 |
11 |
2 |
10 |
51 |
2" |
1 |
2 |
|
|
9 buttons drill bits
|
6 |
9 |
3 |
8 |
45 |
1 3/4" |
3 |
1 |
|
6 |
10 |
3 |
8 |
45 |
1 3/4" |
3 |
1 |
|
|
6 |
9 |
3 |
9 |
48 |
1 7/8" |
3 |
1 |
|
|
6 |
10 |
3 |
8 |
48 |
1 7/8" |
3 |
1 |
|
|
6 |
11 |
3 |
9 |
51 |
2" |
3 |
1 |
|
|
6 |
10 |
3 |
10 |
51 |
2" |
3 |
1 |
|
|
6 |
10 |
3 |
9 |
54 |
2 1/8" |
3 |
1 |
|
|
6 |
10 |
3 |
10 |
57 |
2 1/4" |
3 |
1 |
|
|
R38 Thread Button bits |
||||||||
|
Rock drill Bit |
Carbide dimension |
D |
Flushing hole |
|||||
|
Gauge |
Front |
|||||||
|
N0. |
mm |
N0. |
mm |
mm |
in |
Front |
Side |
|
|
Flat Face button bit
|
8 |
10 |
4 |
10 |
64 |
2 1/2" |
2 |
0 |
|
8 |
11 |
6 |
11 |
76 |
3" |
2 |
0 |
|
|
8 |
13 |
6 |
13 |
89 |
3 1/2" |
2 |
0 |
|
|
8 |
14 |
6 |
14 |
102 |
4" |
2 |
0 |
|
|
Drop Center Button bit Normal Skirt
|
6 |
10 |
3 / 1 |
10 / 9 |
64 |
2 1/2" |
3 |
0 |
|
6 |
11 |
3 / 1 |
11 / 10 |
70 |
2 3/4" |
3 |
0 |
|
|
6 |
13 |
3 / 1 |
11 / 10 |
76 |
3" |
3 |
0 |
|
|
6 |
14 |
3 / 2 |
13 / 10 |
89 |
3 1/2" |
3 |
0 |
|
|
T38 Thread Button bits |
||||||||
|
Rock drill Bit |
Carbide dimension |
D |
Flushing hole |
|||||
|
Gauge |
Front |
|||||||
|
N0. |
mm |
N0. |
mm |
mm |
in |
Front |
Side |
|
|
Flat Face button bit
|
6 |
10 |
3 |
10 |
57 |
2 1/4" |
3 |
1 |
|
6 |
11 |
3 |
10 |
57 |
2 1/4" |
1 |
2 |
|
|
6 |
13 |
3 |
11 |
64 |
2 1/2" |
1 |
2 |
|
|
8 |
10 |
4 |
10 |
64 |
2 1/2" |
2 |
0 |
|
|
8 |
10 |
4 |
10 |
70 |
2 3/4" |
2 |
0 |
|
|
6 |
13 |
3 |
13 |
76 |
3" |
3 |
1 |
|
|
6 |
13 |
5 |
11 |
76 |
3" |
1 |
2 |
|
|
8 |
13 |
5 |
10 |
76 |
3" |
4 |
0 |
|
|
8 |
11 |
6 |
11 |
76 |
3" |
2 |
0 |
|
|
6 |
14 |
4 |
14 |
89 |
3 1/2" |
3 |
0 |
|
|
8 |
13 |
6 |
13 |
89 |
3 1/2" |
2 |
0 |
|
|
8 |
14 |
6 |
13 |
89 |
3 1/2" |
2 |
0 |
|
|
9 |
11 |
8 |
10 |
89 |
3 1/2" |
3 |
1 |
|
|
8 |
14 |
6 |
14 |
102 |
4" |
2 |
0 |
|
|
9 |
13 |
8 |
13 |
102 |
4" |
3 |
1 |
|
|
8 |
16 |
6 |
14 |
115 |
4 1/2" |
2 |
0 |
|
|
9 |
14 |
9 |
13 |
115 |
4 1/2" |
3 |
1 |
|
|
Drop Center Button bit Normal Skirt
|
6 |
10 |
3 / 1 |
10 / 9 |
64 |
2 1/2" |
3 |
0 |
|
6 |
11 |
3 / 1 |
11 / 10 |
70 |
2 3/4" |
3 |
0 |
|
|
6 |
13 |
3 / 1 |
11 / 10 |
76 |
3" |
3 |
0 |
|
|
8 |
11 |
4 / 1 |
10 / 10 |
76 |
3" |
4 |
0 |
|
|
6 |
14 |
3 / 2 |
13 / 10 |
89 |
3 1/2" |
3 |
0 |
|
|
8 |
11 |
4 / 2 |
13 / 10 |
89 |
3 1/2" |
4 |
0 |
|
|
8 |
14 |
4 / 3 |
13 / 11 |
102 |
4" |
4 |
0 |
|
|
T45 Thread Button bits |
||||||||
|
Rock drill Bit |
Carbide dimension |
D |
Flushing hole |
|||||
|
Gauge |
Front |
|||||||
|
N0. |
mm |
N0. |
mm |
mm |
in |
Front |
Side |
|
|
Flat Face button bit
|
6 |
13 |
3 |
13 |
76 |
3" |
3 |
1 |
|
8 |
13 |
5 |
10 |
76 |
3" |
4 |
0 |
|
|
8 |
11 |
6 |
11 |
76 |
3" |
2 |
0 |
|
|
8 |
13 |
6 |
11 |
82 |
3 1/4" |
2 |
1 |
|
|
6 |
14 |
4 |
14 |
89 |
3 1/2" |
3 |
0 |
|
|
8 |
13 |
6 |
13 |
89 |
3 1/2" |
2 |
0 |
|
|
8 |
14 |
6 |
13 |
89 |
3 1/2" |
2 |
0 |
|
|
9 |
11 |
8 |
10 |
89 |
3 1/2" |
3 |
1 |
|
|
8 |
14 |
6 |
14 |
102 |
4" |
2 |
0 |
|
|
9 |
13 |
8 |
13 |
102 |
4" |
3 |
1 |
|
|
8 |
16 |
6 |
14 |
115 |
4 1/2" |
2 |
0 |
|
|
9 |
14 |
9 |
13 |
115 |
4 1/2" |
3 |
1 |
|
|
8 |
16 |
8 |
14 |
127 |
5" |
2 |
0 |
|
|
9 |
14 |
9 |
13 |
127 |
5" |
3 |
1 |
|
|
8 |
16 |
8 |
16 |
152 |
6" |
2 |
0 |
|
|
9 |
13 |
8 |
13 |
102 |
4" |
3 |
1 |
|
|
8 |
16 |
6 |
14 |
115 |
4 1/2" |
2 |
0 |
|
|
9 |
14 |
9 |
13 |
115 |
4 1/2" |
3 |
1 |
|
|
Drop Center Button bit Normal Skirt
|
6 |
11 |
3 / 1 |
11 / 10 |
70 |
2 3/4" |
3 |
0 |
|
6 |
13 |
3 / 1 |
11 / 10 |
76 |
3" |
3 |
0 |
|
|
8 |
11 |
4 / 1 |
10 / 10 |
76 |
3" |
4 |
0 |
|
|
6 |
14 |
3 / 2 |
13 / 10 |
89 |
3 1/2" |
3 |
0 |
|
|
8 |
13 |
4 / 1 |
13 / 13 |
89 |
3 1/2" |
4 |
0 |
|
|
8 |
11 |
4 / 2 |
13 / 10 |
89 |
3 1/2" |
4 |
1 |
|
|
8 |
14 |
4 / 3 |
13 / 11 |
102 |
4" |
4 |
0 |
|
|
8 |
14 |
4 / 3 |
14 / 11 |
115 |
4 1/2" |
4 |
0 |
|
|
T51 Thread Button bits |
||||||||
|
Rock drill Bit |
Carbide dimension |
D |
Flushing hole |
|||||
|
Gauge |
Front |
|||||||
|
N0. |
mm |
N0. |
mm |
mm |
in |
Front |
Side |
|
|
Flat Face button bit
|
6 |
14 |
4 |
14 |
89 |
3 1/2" |
3 |
0 |
|
8 |
13 |
6 |
13 |
89 |
3 1/2" |
2 |
0 |
|
|
8 |
13 |
5 |
13 |
89 |
3 1/2" |
4 |
2 |
|
|
9 |
11 |
8 |
10 |
89 |
3 1/2" |
3 |
1 |
|
|
8 |
14 |
6 |
14 |
102 |
4" |
2 |
0 |
|
|
9 |
13 |
8 |
13 |
102 |
4" |
3 |
1 |
|
|
8 |
16 |
6 |
14 |
115 |
4 1/2" |
2 |
0 |
|
|
8 |
14 |
7 |
14 |
115 |
4 1/2" |
4 |
2 |
|
|
10 |
14 |
9 |
13 |
115 |
4 1/2" |
5 |
0 |
|
|
8 |
16 |
8 |
14 |
127 |
5" |
2 |
0 |
|
|
9 |
14 |
9 |
14 |
127 |
5" |
2 |
0 |
|
|
10 |
16 |
7 |
16 |
127 |
5" |
5 |
0 |
|
|
8 |
16 |
8 |
16 |
140 |
5 1/2" |
2 |
0 |
|
|
10 |
16 |
8 |
16 |
140 |
5 1/2" |
5 |
0 |
|
|
Drop Center Button bit Normal Skirt
|
6 |
13 |
3 / 1 |
11 / 10 |
76 |
3" |
3 |
0 |
|
6 |
14 |
3 / 2 |
13 / 10 |
89 |
3 1/2" |
3 |
0 |
|
|
8 |
13 |
4 / 1 |
13 / 13 |
89 |
3 1/2" |
4 |
1 |
|
|
8 |
11 |
4 / 2 |
13 / 10 |
89 |
3 1/2" |
4 |
0 |
|
|
8 |
14 |
4 / 3 |
13 / 11 |
102 |
4" |
4 |
0 |
|
|
8 |
14 |
4 / 3 |
14 / 11 |
115 |
4 1/2" |
4 |
0 |
|
|
10 |
14 |
5 / 3 |
13 / 13 |
115 |
4 1/2" |
5 |
0 |
|
|
8 |
16 |
4 / 3 |
16 / 13 |
127 |
5" |
4 |
0 |
|
|
10 |
16 |
5 / 3 |
16 / 13 |
127 |
5" |
5 |
0 |
|
|
8 |
16 |
4 / 4 |
16 / 14 |
140 |
5 1/2" |
4 |
0 |
|
|
10 |
16 |
5 / 4 |
16 / 14 |
140 |
5 1/2" |
5 |
0 |
|
|
GT60 Thread Button bits |
||||||||
|
Rock drill Bit |
Carbide dimension |
D |
Flushing hole |
|||||
|
Gauge |
Front |
|||||||
|
N0. |
mm |
N0. |
mm |
mm |
in |
Front |
Side |
|
|
Flat Face button bit
|
8 |
13 |
6 |
13 |
93 |
3 11/16" |
2 |
0 |
|
8 |
13 |
6 |
13 |
95 |
3 3/4" |
2 |
0 |
|
|
8 |
14 |
6 |
13 |
102 |
4" |
4 |
2 |
|
|
8 |
16 |
6 |
13 |
102 |
4" |
4 |
2 |
|
|
9 |
13 |
8 |
13 |
102 |
4" |
3 |
1 |
|
|
8 |
14 |
7 |
14 |
115 |
4 1/2" |
4 |
2 |
|
|
9 |
14 |
9 |
13 |
115 |
4 1/2" |
3 |
1 |
|
|
10 |
14 |
9 |
13 |
115 |
4 1/2" |
5 |
0 |
|
|
8 |
16 |
8 |
14 |
127 |
5" |
4 |
2 |
|
|
9 |
14 |
9 |
14 |
127 |
5" |
3 |
1 |
|
|
10 |
16 |
7 |
16 |
127 |
5" |
5 |
0 |
|
|
10 |
16 |
8 |
16 |
140 |
5 1/2" |
5 |
0 |
|
|
10 |
16 |
8 |
16 |
152 |
6" |
5 |
0 |
|
|
Drop Center Button bit Normal Skirt
|
8 |
13 |
4 / 2 |
13 / 10 |
93 |
3 11/16" |
4 |
0 |
|
8 |
13 |
4 / 2 |
13 / 10 |
95 |
3 3/4" |
4 |
0 |
|
|
8 |
14 |
4 / 3 |
13 / 11 |
102 |
4" |
4 |
0 |
|
|
8 |
14 |
4 / 3 |
14 / 11 |
115 |
4 1/2" |
4 |
0 |
|
|
10 |
14 |
5 / 3 |
13 / 13 |
115 |
4 1/2" |
5 |
0 |
|
|
8 |
16 |
4 / 3 |
16 / 13 |
127 |
5" |
4 |
0 |
|
|
10 |
16 |
5 / 3 |
16 / 13 |
127 |
5" |
5 |
0 |
|
|
8 |
16 |
4 / 4 |
16 / 14 |
140 |
5 1/2" |
4 |
0 |
|
|
10 |
16 |
5 / 4 |
16 / 14 |
140 |
5 1/2" |
5 |
0 |
|
|
8 |
16 |
6 / 4 |
16 / 14 |
152 |
6" |
4 |
0 |
|
Our Service
At KAT Drilling Tools, we deliver customer-centric solutions for mining, construction, exploration, and oil & gas sectors-covering the full drill tool lifecycle.
Customized Design & Manufacturing
Bespoke drill bits/rods tailored to your drilling conditions, compliant with API/ISO standards. Rapid prototyping and batch production available.
Quality Control & Testing
Rigorous raw material, in-process, and final performance inspections. Detailed quality reports for every batch.
Technical Consultation & Support
Expert advice on tool selection, on-site training, and real-time troubleshooting to minimize downtime.
After-Sales Maintenance & Repair
Cost-effective maintenance, professional repair, and fast spare parts supply to extend tool lifespan.
Logistics & Supply Chain
Flexible delivery (bulk/JIT/emergency), secure packaging, and full customs/documentation support for global trade.
Long-Term Partnership
Customized service packages, dedicated account management, and continuous optimization based on your feedback.
Why choose us?
At KAT Drilling Tools, we stand out as your trusted drill tool partner for core advantages that deliver real value:
1. One-Stop Drill Tool Supply
2. Uncompromising Quality
3. Competitive Cost-Effectiveness
4. Professional Technical Support
5. End-to-End Service
6. Global Reliability
7. Trusted Long-Term Partnership
Hot Tags: threaded button bit, China threaded button bit manufacturers, suppliers, factory





























