China Wholesale 4 Inch Rock Drill Bit – Bench and long-hole drilling ST58 (2 1/4″) – LYNE
China Wholesale 4 Inch Rock Drill Bit – Bench and long-hole drilling ST58 (2 1/4″) – LYNE Detail:
Carburization is a process used to harden the entire rod surface both internally and externally to strengthen and extend the life of the rod.
High Frequency Induction is a process where only the thread ends of the rod are hardened to lengthen thread life.
Our comprehensive range of bench and production rock drilling tools includes everything from 1” rope thread equipment all the way up to T60 thread equipment, Many customers say that our rods, tubes and button bits are the best on the market today. Let’s just say they will improve productivity considerably.
Bench and long-hole drilling ST58 (2 1/4″)
| Bits |
Diameter |
Buttons,mm |
Angle |
Flushing hole |
Weight approx kg |
Part No. |
||||||
|
mm |
in |
Front No Size |
Gauge No Size |
Type |
Front |
Gauge |
||||||
| Button bit | ||||||||||||
 |
89 |
3 1/2” |
6×12 |
8×12 |
|
35º |
4 |
- |
4.1 |
1432-89ST58-612/812-45-41 |
||
|
89 |
3 1/2” |
6×12 |
8×12 |
|
35º |
4 |
- |
4.1 |
1432-89ST58-612/812-45-51 |
|||
|
|
||||||||||||
| Button bit, Heavy Duty | ||||||||||
 |
89 |
3 1/2” |
6×12 |
8×14 |
|
35º |
2 |
- |
4.5 |
1432-89ST58-612/814-45-41 |
|
89 |
3 1/2” |
6×12 |
8×14 |
|
35º |
2 |
- |
4.5 |
1432-89ST58-612/814-45-51 |
|
|
|
||||||||||
| Reaming bit, ST58 | ||||||||||
 |
152 |
6” |
6×14 |
8×14 |
|
35º |
4 |
- |
13.0 |
1441-152ST58-614/814-45-41 |
| Tubes |
Length |
Diameter |
Weight approx kg |
Part No. |
||
|
mm |
ft/in |
mm |
inch |
|||
| Drill tube, ST58－Round76－ST58 | ||||||
 |
1525 |
5＇ |
76 |
3” |
33.2 |
24G76-ST58/76-1525-23 |
|
1830 |
6＇ |
76 |
3” |
41.0 |
24G76-ST58/76-1830-23 |
|
FAQ
Q2: Are your products high quality ?
Yes .Our customers made the test reports proved that.If you need more information,please contact us.
Q3: What kind of payment terms do you offer and what is your best payment terms?
We offer different payment terms, including T/T, D/A, D/P, L/C and O/A, etc.
Our best payment terms is 120 days after shipping date for our distributors and sole distributors.
Q4:Do you offer warranty on your products?
Yes, for different products we offer different warranty that cover all manufacturing defects in materials and workmanship.
The longest period of warranty is 2 years after shipping date.
Q5: Do you offer OEM service?
Yes, we can offer OEM service if you have regular requirement.
Product detail pictures:
Related Product Guide:
go on to boost, to be certain item quality in line with market and buyer standard demands. Our firm has a excellent assurance procedure happen to be established for China Wholesale 4 Inch Rock Drill Bit – Bench and long-hole drilling ST58 (2 1/4″) – LYNE , The product will supply to all over the world, such as: Moscow, Palestine, Kenya, At Present, our products have been exported to more than sixty countries and different regions, such as Southeast Asia, America, Africa, Eastern Europe, Russia, Canada etc. We sincerely hope to establish wide contact with all potential customers both in China and the rest part of the world.
By Cheryl from South Africa - 2018.11.22 12:28
The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.
By Sharon from Finland - 2018.09.12 17:18