- Ultra-Precise Workmanship: Specifically engineered for miniature internal profiling & deep-face slotting down to micro-diameters, delivering mirror-like surface finishes.
- Perfect for High-End Manufacturing: Widely trusted and approved in heavy-duty precision industries, including high-performance fishing gear, aerospace components, and medical devices.
- Full Geometry Tailoring (OEM/ODM): Standard SMFR/SMVR series in stock, with robust custom capabilities for unique profiles, threads, and chamfers based on your drawings.
- Get a Quick Match & Free Quote: Send us your processing diameter/material today, and our expert technical engineers will recommend the ideal setup within 12 hours!
DESCRIPTION
Product Overview
Achieve maximum efficiency in high-precision micro-hole machining with the CM SMF R8-15L-T6 Solid Carbide Micro Boring Bar. Engineered from premium ultra-fine micro-grain tungsten carbide, this internal turning and grooving cutter provides the exceptional rigidity and edge sharpness required to eliminate deflection in small-diameter operations.
Extensively trusted in manufacturing high-end fishing gear (precision reels, gears, and spools), medical instruments, and miniature automotive components, it guarantees mirror-like surface finishes in narrow internal profiles.
Technical Specifications (CM SMF R8-15L-T6)
To ensure a perfect match for your CNC lathe setup, here are the exact parameters for this specific model:
Parameter Code | Technical Specification | Actual Value |
Brand / Material Prefix | Substrate Grade | CM (Ultra-Fine Micro-Grain Carbide) |
Series | Product Line | SMF (Micro Internal Boring & Grooving) |
Shank Diameter (D) | Tool Holder Connection | 8.0 mm |
Max. Processing Depth (L_1) | Useful Neck Length | 15 mm |
Min. Bore Clearance (T) | Minimum Hole Capability | T6 Specification |
Coating Options | Surface Treatment | Uncoated / Premium TiAlN Coated |
Custom Tailored Solution (As Required)
Need a modification for a unique blueprint? We support comprehensive custom manufacturing based on your precise production drawings:
Custom Profiles: Profiling bars, corner rounding, and specialized chamfering geometries.
Multi-Functional Ends: Tailored grooving widths, deep face slotting variations, and custom internal thread cutters.
Target Applications & Materials
Applicable Industries: High-end fishing gear manufacturing, automotive miniature valves, aerospace instruments, and specialized CNC job shops.
Workpiece Materials: Proven excellence in turning Stainless Steel, Carbon Steel, Die Steel, Aluminum Alloys, Brass, and Copper alloys.
CNC Inserts - Frequently Asked Questions
1. How do I choose the right grade for my specific machining application?
Choosing the correct grade is crucial for tool life and performance. We provide a comprehensive Grade Cross-Reference Chart that maps our CD Carbide grades to major international brands like Sandvik, Mitsubishi, and Kyocera. If you are unsure, simply provide us with the workpiece material (P, M, K, S, H) and machining conditions, and our engineers will recommend the best solution.
2. Can you provide customized CNC tools based on our drawings?
Yes. As a factory-direct manufacturer, we specialize in bespoke engineering. Whether you need non-standard dimensions, specific chipbreakers, or customized coatings for unique alloys, our technical team can develop products based on your technical drawings (PDF/STEP) or physical samples.
3. Do you offer free samples for testing before bulk orders?
We understand that "trial cutting" is the only way to verify tool stability. We offer sample packs for professional buyers to test performance on their own CNC machines. Please contact our sales team with your machine specifications and the material you are processing to request your trial samples.
4. How do you ensure the quality consistency of your carbide inserts?
Our quality control is integrated into every step of the production process in Zhuzhou. We use high-purity tungsten carbide powder and advanced PVD/CVD coating equipment. Each batch undergoes rigorous inspection, including microscopic edge analysis and hardness testing, to ensure that the performance of the 1,000th insert is identical to the 1st.
5. What is the typical lead time for international B2B orders?
For standard models in stock (such as WNMG, CNMG, etc.), we usually ship within 3-5 business days. For customized tools or large-volume OEM orders, the production cycle typically ranges from 2 to 4 weeks, depending on the complexity of the design and coating requirements.
6. Are you a manufacturer or a trading company?
We are a direct manufacturing enterprise based in Zhuzhou, the hunan of China’s tungsten carbide industry. By cutting out the middleman, we provide factory-direct pricing and faster technical support. This allows us to offer more flexible MOQs (Minimum Order Quantities) for small-to-medium-sized distributors and specialized machine shops.
