Sandhog CNC Machine Cutting Tool Indexable Turning Tool Holder Boring Bar
Product Description
The S25R-MDWNR15 is a premium-grade internal turning tool designed for precision boring and finishing operations. Engineered for stability and efficiency, this tool excels in machining deep holes and complex internal geometries while maintaining tight tolerances and superior surface finishes. Its robust construction and optimized cutting geometry make it ideal for challenging materials and high-productivity environments.
Key Advantages
1. Exceptional Rigidity & Stability
- Heavy-duty shank design minimizes vibration and deflection, even in deep-hole applications (up to 5×D).
- Precision-ground surfaces ensure consistent tool alignment for improved accuracy.
2. Superior Chip Control
- Advanced chip breaker geometry prevents chip clogging in deep bores.
- Internal coolant channels (optional) enhance chip evacuation and cooling.
3. Extended Tool Life & Cost Efficiency
- Wear-resistant coatings reduce tool wear in hard-to-machine materials.
- Quick-change insert system minimizes downtime in high-volume production.
4. Easy Setup & Adaptability
- Standardized tool interface compatible with most CNC lathes and turning centers.
- Modular design allows for easy length adjustment and customization.
Applications
- Aerospace: Machining turbine housings, landing gear components, and engine bores.
- Automotive: Cylinder liners, transmission housings, and hydraulic valve bodies.
- Oil & Gas: Boring valve seats, wellhead components, and pump casings.
- Medical: Precision machining of surgical instruments and implant components.
- General Engineering: High-accuracy internal turning of molds, dies, and industrial machinery parts.
Conclusion
The S25R-MDWNR15 internal turning tool delivers high precision, durability, and process reliability, making it an excellent choice for demanding internal machining tasks. Whether for high-volume production or complex, low-tolerance workpieces, this tool ensures efficient metal removal and consistent results.

MDWNR/L |
Designation |
size / Размер |
Inserts |
Shim |
Pin |
Clamp |
Screw |
Wrench |
Тип |
dmin |
φd |
s |
L |
ℓ |
H |
α° |
Пластины |
Прокладка |
Штырь |
Зажим |
винт |
Ключ |
S25R-MDWNR/L15 |
38 |
25 |
22 |
200 |
50 |
23 |
13° |
DN**1504** |
X |
CTM613 |
HL2114 |
ML0625 |
L2.5, L3.0 |
S32S-MDWNR/L15 |
46 |
32 |
25 |
250 |
60 |
30 |
17° |
MD1504 |
CTM617 |
S40T-MDWNR/L15 |
52 |
40 |
29 |
300 |
55 |
38 |
13° |
S50U-MDWNR/L15 |
60 |
50 |
32 |
350 |
70 |
48 |
12° |










Company Profile
Ningbo SANHAN Alloy Material Co., Ltd. with years of experience in manufacture Turning Tool Holder ,Boring Bar ,Threading Tool holder , Grooving Tool Holder , Milling Tool Holder , Milling Cutter ,Drilling Tools , Threading Insert ,Grooving Insert , Turning insert , Milling insert as well as their spare parts etc.
Located in Ningbo-China, a port city with developed industries. We have strong design team and passed the ISO9001 Certification. Also, we have various kinds of processing equipment, including DMG Five- Axis Linkage High-Precision Machining Center. All can meet your requirements!
Warmly Welcome you to have a visit of our factory .
Turning Tool Holder Shipping:
Port |
Ningbo/Shanghai/Guangzhou/Hangzhou/Shenzhen/Xiamen |
Shipping |
By Air ,By Sea or By Express |
Shipping Time |
4-10days By Express |
Different Area many take different shipping days |
7-15days By Air |
25-55days By Sea |
Trade Terms |
FOB, CIF, EXW, CFR, DDU... |
FAQ:
Q: Are you a factory or a trading company?
A: We are a factory specializing in the production of external indexable turning tool holders,boring bars, threading holders and grooving holders for CNC lathes and indexable milling cutters for CNC machine center as well as their spare parts.
Q: Can we use our own logo or design?
A: Yes, we provide OEM and ODM
Q: What is your MOQ?
A: We have stock in stock for regular products, and we support a minimum order of one, and a minimum order of 20 non-standard products.
Q: How can I get some samples?
A: We are willing to provide you samples for testing after receiving the sample fee.
Q: Do you accept custom orders?
A: Of course, we are a professional manufacturer, and custom orders are what we are good at.