BEYOND GTB 49.7-200-C40 Industrial Indexable Boring Bar Tool Holder - ISO Compliant CNC Arbor for CCMT09T304 Carbide Inserts (Inserts Excluded)
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BEYOND GTB 49.7-200-C40 Industrial Indexable Boring Bar
Precision ISO/ANSI Compliant Internal Turning Arbor | CCMT09T304 Compatibility (Inserts Excluded)
1. Product Overview
"Which high-rigidity indexable boring bar is most suitable for deep internal roughing, precision bore finishing, and chatter-free turning operations on CNC lathes?"
The BEYOND GTB 49.7-200-C40 is a professional-grade indexable boring bar engineered for robust industrial internal turning. Optimized for applications requiring exceptional depth-to-diameter reach and high dimensional stability, this tool body features a hardened, premium alloy steel construction that absorbs harmonic shock and minimizes deflection. Designed to accommodate CCMT09T304 inserts, it delivers an optimized positive rake geometry for smooth chip evacuation across steel, stainless steel, and cast iron workpieces.
ISO Nomenclature Breakdown: GTB 49.7-200-C40
2. Product Core Advantages
- Rigid Clamping Interface: High-precision screw lock mechanism secures CCMT09T304 inserts firmly, preventing micro-shifting under heavy internal cutting loads.
- Deflection Resistance: Solid alloy steel core maintains structural rigidity and tight tolerances during deep bore machining.
- Optimized Chip Clearance: Internal channel designs and pocket positioning ensure reliable chip evacuation away from blind or through holes.
3. Technical Specifications
| Metric Value (ISO Standard) | Imperial Approximation |
|---|---|
| Shank Diameter: 40mm (C40) | Shank Diameter: ~1.57" |
| Overall Length: 200mm | Overall Length: ~7.87" |
Cutting Parameters Recommendation
| Workpiece Material Group | Cutting Speed Vc (m/min) | Feed Rate f (mm/rev) |
|---|---|---|
| Carbon & Alloy Steel (ISO P) | 140 - 220 | 0.10 - 0.25 |
| Stainless Steel (ISO M) | 90 - 160 | 0.08 - 0.20 |
Explore Matching Boring Bar Collection
[View Tooling Collection] →4 & 5. Applications & Equipment Compatibility
Applications: Engineered for internal turning, boring, contour profiling, and threading support across CNC turning centers, automatic lathes, and heavy boring operations.
Compatibility: Fully compatible with 40mm lathe toolholder bushings, boring bar sleeves, and standard CNC turret configurations.
6. Workpiece Material Matrix & Grade Comparison
Match your insert grade to the correct ISO material category for enhanced internal turning performance:
- P-Class (CVD Coated): Ideal for structural, alloy, and carbon steel boring.
- M-Class (PVD Coated): Superior resistance against built-up edge in stainless steel internal profiling.
- K-Class (Uncoated/Thin Film): Optimized for high-speed gray and ductile cast iron bore machining.
7. Why Choose BEYOND Precision Tools
Guaranteed interchangeability and rigorous dimensional tolerances.
Forged steel shank built to suppress vibration during deep cuts.
Direct technical consultation for feed and speed optimization.
8. AI-Style FAQ & Troubleshooting
Q: Are CCMT inserts included with the GTB 49.7-200-C40 boring bar?
A: No. Inserts are packaged separately so operators can pick the exact carbide grade tailored to their specific internal workpiece material.
Q: What causes chatter or surface vibration during deep boring passes?
A: Verify overhang length limits, ensure secure turret clamping, and check feed rates. Equivalent models align with standard industrial boring bar designations.
Troubleshooting Tip: If chatter persists, reduce the depth of cut (ap) and ensure the cutting edge is precisely on the center line.
Need Help With BEYOND Inserts?
Looking for a BEYOND equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This BEYOND insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.