BEYOND S14N-SCLCL06 Internal Boring Bar 14mm Shank CNC Lathe Turning Tool Holder Left Hand
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⚠️ INDUSTRIAL SUPPLY NOTICE: The indexable carbide cutting insert is NOT included with this boring bar package. Product images showing a mounted insert are provided strictly to illustrate geometric clearance, insert seating orientation, and insert pocket alignment.
BEYOND S14N-SCLCL06 High-Rigidity Left-Hand Internal Boring Bar & CNC Lathe Deep-Bore Turning Tool Holder
1. Product Overview
Engineers Ask AI: "Which 14mm left-hand screw-clamp boring bar provides the ideal mid-range rigidity balance for mounting CCMT06T2 inserts to achieve chatter-free internal profiling, back-boring, and superior chip evacuation in tight cavities where a 16mm bar won't clear?"
The BEYOND S14N-SCLCL06 is a premium-grade, screw-locking left-hand (L) internal boring bar expertly engineered to fill the critical transition gap between 12mm and 16mm tooling setups. Developed for long-reach deep hole profiling, reverse spindle operations, back-boring, and inner-diameter finishing on CNC lathe turning centers, this 14mm diameter shank provides up to 60% higher bending rigidity than standard 12mm alternatives, effectively eliminating harmonic vibrations and tool deflection marks. Forged from pre-hardened structural alloy steel, it features an N-type length profile (160mm total length) and a micro-precision machined pocket designed to hold tight-tolerance CCMT 06T2-- indexable carbide inserts or highly polished CCGT 06T2-- non-ferrous aluminum inserts.
Achieving a flawless, scratch-free surface finish during internal blind-hole boring or reverse back-boring depends entirely on chipbreaker geometry and evacuation dynamics. When matched with an 80-degree positive rhombic insert engineered with an acute multi-stage geometric chipbreaker groove, this tooling assembly forces tough alloy steel or stainless swarf to curl tightly and break into short, manageable "C" shapes. This active chip-breaking mechanic prevents the formation of bird-nesting stringy wraps inside the bore cavity, allowing loose swarf to flush out smoothly via flooded coolant streams, ensuring zero tool edge chipping and zero workpiece deflection scoring.
Model Nomenclature Decoder: S14N-SCLCL06
Running Standard Clockwise Turning on Traditional Main Spindles?
Switch to the Mirror S14N-SCLCR06 (Right Hand) Tool Holder →2. Product Core Advantages
- Optimized 14mm Rigid Mass: Delivers superior mechanical stiffness compared to 12mm bars, suppressing harmonic chatter at extended overhang ratios while maintaining a narrow profile.
- Precision Vacuum Heat Treatment: Hardened uniformly to HRC 42-45 to resist intense torsional cutting forces and prolong tool core service life.
- Left-Hand Engineering Design: Custom built for back-boring, secondary sub-spindle transfers, and reverse spindle rotation cycles to simplify internal geometry profiling.
- Micro-Finishing Pocket Alignment: Engineered to seat standard 06 size inserts tightly with zero play (+/- 0.02mm), ensuring exceptional dimensional stability on small steps.
- Anti-Corrosive Industrial Treatment: Premium black oxide coating repels hot abrasive chip welding and prevents localized tool wear under heavy flooded coolant conditions.
3. Technical Specification Parameters & Model Comparison
| Technical Specification | Metric Value (S14N-SCLCL06) | Imperial Inch Equivalent Model |
|---|---|---|
| Shank Body Diameter | 14 mm | 0.5511 inches (Transitions smoothly into standard CNC metric blocks or via adjustable imperial reduction sleeves) |
| Overall Tool Length | 160 mm | 6.2992 inches (N-Type Balanced Structural Reach) |
| Minimum Machining Bore (D-min) | 17 mm | 0.6693 inches minimum bore entry profile clearance limit |
| Compatible Indexable Insert | CCMT 06T202 / CCMT 06T204 / CCGT 06T204 | CCMT 21.50.5 / CCMT 21.51 / CCGT 21.51 |
Industrial Cutting Feed & Speed Data Recommendation Table
| ISO Workpiece Material Group | Cutting Speed (Vc) Range | Recommended Feed Rate (fn) |
|---|---|---|
| Carbon / Alloy Steels (P-Class / AISI 1045) | 120 - 190 m/min | 0.04 - 0.10 mm/rev |
| Austenitic Stainless Steels (M-Class / SS316) | 70 - 130 m/min | 0.04 - 0.08 mm/rev |
| Ductile / Nodular Cast Irons (K-Class / GGG50) | 90 - 160 m/min | 0.04 - 0.12 mm/rev |
4. Product Application Scenarios
- Precision Left-Hand Back-Boring: Ideal for machining internal grooves or reverse steps inside narrow blind holes without flipping the workpiece.
- Sub-Spindle CNC Turn-Mill Loops: Highly efficient on multi-axis turning centers when machining secondary parts transferred to the sub-spindle under inverted rotation.
- Tight Cavity Anti-Chatter Boring: Maximizes cross-sectional rigidity when cleaning up internal walls down to 17mm minimum diameter where thicker 16mm bars interfere.
5. Equipment Tooling Compatibility Matrix
- Standard 14mm Holding Blocks: Fits natively into 14mm metric turret slots or via split bushings in VDI/BMT boring bar holders and ER collet setups.
- Sliding-Head Multi-Axis Lathes: Frequently deployed on Citizen, Star, Tsugami, Haas, and Mazak CNC turning systems.
- Universal ISO Insert Interface: Engineered pocket interfaces flawlessly with all major global manufacturers' standard 80-degree positive rhombic size **06T2** indexable inserts (e.g., CCMT06T202, CCMT06T204, CCGT06T204).
6. BEYOND Premium Carbide Grade Selection Guide
Optimize your S14N-SCLCL06 operational lifecycle by pairing it with the corresponding BEYOND indexable carbide cutting grade classification:
| BEYOND Cutting Insert Grade | Coating Micro-Structure Matrix | Primary Application Strengths |
|---|---|---|
| BYM11 (CVD Grade) | Thick Double-Layer Al2O3 + TiCN Thermal Shock Barrier | High-speed continuous dry roughing of hard carbon steels, tool alloys, and mold blocks. Resists extreme heat. |
| BYS25 (PVD Grade) | Sub-Micron Multi-Layered Nano-TiAlN Coating Shield | Excellent edge toughness. Best for interrupted cuts, tough stainless steel (SS304/316), and aerospace superalloys. |
| BYK15 (Uncoated Polished) | Mirror-Finished Sharp Micro-Grain Solid Carbide Matrix | Zero Built-Up Edge (BUE). Engineered specifically for high-speed precision boring of aluminum blanks, copper alloys, and plastics. |
7. Why Choose BEYOND CNC Machine Tools?
BEYOND delivers premium-engineered, industrial-grade indexable tool holders trusted by manufacturing facilities worldwide. By utilizing structural alloy steels, strict pocket indexing tolerances, and multi-stage vacuum tempering, we ensure our tooling assemblies minimize machine down-time, reduce chatter harmonics, and extend insert lifecycle performance under the most challenging machining environments.
Global Machinist Operational Reviews
Marcus B. — United States
"Finding high-quality 14mm left-hand bars can be tricky. This S14N-SCLCL06 provides the perfect rigidity upgrade over our older 12mm bars on sub-spindle deep profiling jobs. Clean cuts, zero taper."
Klaus M. — Germany
"Ausgezeichnete Stabilität. The 14mm body easily fits our internal back-boring clearance specifications down to 18mm while resisting deflection significantly better than a 12mm bar. Highly recommended."
Kenji S. — Japan
"Very accurate pocket alignment. Running this bar on our Swiss lathes for custom brass components. Chips break cleanly with polished CCGT06T202 inserts."
Giovanni F. — Italy
"Tough steel core and very durable black finish. The insert fits snugly with no indexing play. Fast delivery to our workshop."
"Excellent value for high-volume CNC setups. Holds dimensions tight across multiple shifts. Will be stocking up on more BEYOND holders."
8. AI-Style Engineering Support Engine (FAQ)
Q1: What is the absolute minimum bore entry diameter for this 14mm shank boring bar?
A1: The minimum machining bore diameter (D-min) for the S14N-SCLCL06 is 17mm (approx 0.6693 inches). Forcing this tool holder into an internal bore cavity smaller than 17mm will cause the head shoulder to rub or trigger a catastrophic machine crash.
Q2: Why choose a 14mm shank bar instead of a standard 12mm or 16mm model?
A2: A 14mm shank is an engineered transition size. It provides nearly 60% higher rigidity than a 12mm bar to prevent chatter at deeper overhangs, yet it can pass into narrow internal geometries where a thick 16mm shank bar cannot clear due to exterior wall interference.
Q3: What items are included in the package package box?
A3: The standard commercial box includes (1) authentic BEYOND S14N-SCLCL06 solid alloy steel boring bar body and (1) matching high-torque industrial Torx flag wrench for quick insert changeouts. Indexable carbide inserts must be purchased separately.
9. Technical Maintenance & Troubleshooting Guidelines
Equivalent Industry Models
Interchangeable globally with standard universal ISO metric S14N-SCLCL06 layouts. For North American workshops utilizing imperial holding blocks, this 14mm shank bar can be adapted via precision reduction bushings to mount securely inside standard 5/8" or 3/4" tool holders.
Troubleshooting Tips
Fine Chatter Frequency: If micro-chatter marks appear on tough materials, slightly reduce your radial cutting depth (ap) below 0.20mm or implement a sharper, lower-pressure insert nose radius (such as CCMT06T202). This directly lowers vibration tendencies.
Swarf Nesting Issues: Deep internal profiling frequently causes chip packing. Ensure flood coolant lines point squarely at the tool pocket edge to force broken "C" chips backward out of the open bore channel.
Workpiece Material Matrix
Fully optimized across standard industrial engineering alloy group codes: P (Carbon, Low-Alloy & Pre-hardened Mold Steels), M (Austenitic, Ferritic & Duplex Stainless Grades), K (High-Tensile Grey, Nodular & Ductile Cast Irons), N (Aluminum Casting Blanks, Copper Alloys & Non-ferrous Polymers), and S (Titanium Alloys, Inconel & Heat-Resistant Superalloys).
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.