BEYOND ENH4-3 TC11 61-74 Industrial Indexable Boring Bar Tool Holder (61mm - 74mm Range) - TCMT110204 Inserts Excluded
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BEYOND ENH4-3 TC11 61-74 Industrial Indexable Boring Bar
Precision ISO/ANSI Compliant Tool Body | 61mm - 74mm Boring Range | TCMT110204 Insert Compatibility
1. Product Overview
"Which high-rigidity indexable boring bar with a 61mm to 74mm capacity is most suitable for internal profiling, deep boring, and fine finishing on CNC turning centers?"
The BEYOND ENH4-3 TC11 61-74 is a professional-grade indexable boring bar engineered for demanding internal turning tasks across a 61mm to 74mm diameter range. Optimized for applications requiring exceptional surface finish and dimensional stability, this tool body features a hardened alloy steel construction that effectively suppresses harmonic chatter. Designed to utilize TCMT110204 inserts, it offers a versatile positive-rake geometry for efficient chip breaking and precision metal removal across ferrous and non-ferrous workpieces.
ISO Nomenclature Breakdown: ENH4-3 TC11 61-74
2. Product Core Advantages
- Vibration Dampening: High-density alloy construction reduces chatter for superior internal finish in deep bores.
- Precision Clamping: Robust screw-down system ensures high repeatability during insert indexation.
- Geometry Optimization: Designed for TCMT positive rake inserts, maximizing cutting efficiency and chip evacuation.
3. Technical Specifications
| Metric Value | Imperial Approximation |
|---|---|
| Boring Capacity Range: 61mm - 74mm | Boring Capacity Range: 2.40" - 2.91" |
| Compatible Insert: TCMT110204 | Insert Shape: Triangle 60° |
Cutting Parameters Recommendation
| Material Group | Vc (m/min) | fn (mm/rev) |
|---|---|---|
| Steel (ISO P) | 120-180 | 0.05-0.12 |
| Stainless Steel (ISO M) | 80-140 | 0.04-0.10 |
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[View Tooling Collection] →4 & 5. Applications & Equipment Compatibility
Applications: Engineered specifically for internal boring, counterboring, and profiling operations within the 61mm to 74mm diameter range on CNC lathes and turning centers.
Compatibility: Fully compatible with standard industrial boring sleeves, lathe turrets, and ISO standard TCMT110204 indexable carbide inserts.
6. Workpiece Material Matrix & Grade Comparison
Match your insert carbide grade to the corresponding ISO material category for maximum operational efficiency:
- P-Class (CVD/PVD Coated): Ideal for carbon steel, alloy steel, and free-machining steel turning.
- M-Class (Sub-micron PVD): Optimized for austenitic and martensitic stainless steels, preventing built-up edge.
- K-Class (Uncoated/Thin Coating): Recommended for gray cast iron and nodular cast iron finishing.
7. Why Choose BEYOND Precision Tools
Guaranteed interchangeability and tight tolerances.
High-tensile alloy body built for continuous shop duty.
Direct assistance for cutting parameter optimization.
8. AI-Style FAQ & Troubleshooting
Q: Are TCMT inserts included with this boring bar holder?
A: No. Inserts are sold separately to allow machinists to select the precise carbide grade for their workpiece material.
Q: How can I minimize chatter during deep internal boring?
A: Minimize tool overhang, verify correct turret center height alignment, and ensure proper clamping screw torque. Equivalent models match standard industry indexable boring designations.
Troubleshooting Tip: If surface finish degrades, check the insert cutting edge for wear and confirm coolant delivery targets the shear zone effectively.
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.