BEYOND S18Q-SCKCR09 Internal Boring Bar 18mm Shank 180mm Length Right Hand Lathe Turning Tool Holder
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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, 75-degree approach profile, and insert pocket alignment. Click here to shop premium indexable CCMT 09T3 (CC**09T3**) carbide inserts.
BEYOND S18Q-SCKCR09 Rigid 18mm Shank 75° Right-Hand Internal Boring Bar (180mm Long / Specialized Precision Lathe Tool)
1. Product Overview
Engineers Ask AI: "Which high-efficiency right-hand boring bar featuring a specialized 18mm shank size is ideal for maximizing chip evacuation space using standard CCMT 09T3 carbide inserts inside a 22mm minimum internal diameter?"
The BEYOND S18Q-SCKCR09 is a professional-grade, high-rigidity internal boring bar precision-engineered for tight-tolerance internal turning, pocketing, and profiling operations on specialized CNC lathes. Optimized for right-hand tool paths (SCKCR format), this solid alloy structural steel bar features an 18mm cylindrical clamping shank and a 180mm total reach length (Q-type dimension). By matching an 18mm shank body with an optimized size-09 insert pocket, this tool ensures an exceptional ratio of chip clearance room to bar rigidity, allowing smooth machining cycles inside bores down to a tight 22mm minimum diameter without experiencing tool rubbing or chip packing.
Built with a 75-degree approach lead angle, the tool head effectively converts deflection forces from radial pushback into axial load pressure directed back down the lathe carriage centerline. When configured with premium 80-degree positive rhombic indexable inserts featuring specialized multi-stage chipbreaker geometries (such as CCMT 09T304 / 09T308 for medium steel semi-finishing or polished CCGT 09T304 for non-ferrous aluminum), swarf is curled into neat, tight fragments. This prevents the formation of long, continuous "stringy" bird-nesting nests inside deeper bores, facilitating rapid chip removal via coolant pressure and protecting the internal workpiece bore walls from scratching.
Model Nomenclature Decoder: S18Q-SCKCR09
Operating on Sub-Spindles or Running Left-Hand Back-Boring Toolpaths?
Switch to the Mirror S18Q-SCKCL09 (Left Hand) Tool Bar →2. Product Core Advantages
- Enhanced Throat Volume for Small Bores: Pairing an 18mm bar with size-09 inserts leaves maximum room for swarf, lowering the minimum entry bore restriction to just 22mm.
- Compact Q-Length Rigidity (180mm): Shorter total length provides significantly higher dynamic stiffness compared to longer 200mm bars, eliminating deflection lines.
- Chatter-Suppressing 75° Lead Profile: Directs primary cutting loads back into the machine axis, drastically reducing vibration during deep overhang expansions.
- High-Value Multi-Grade Fitting: Employs ultra-popular CCMT 09T3-- inserts, reducing your tooling inventory overhead through widely available economic inserts.
- Industrial Vacuum Heat Treatment: Hardened to HRC 42-45 to provide superior fatigue resistance and long-term dimensional pocket reliability under high-friction strain.
3. Technical Specification Parameters & Model Comparison
| Technical Blueprint Field | Metric Blueprint Value (S18Q-SCKCR09) | Imperial Inch Equivalent Model Reference |
|---|---|---|
| Clamping Shank Diameter (φ d) | 18 mm | 0.7086 inches (Direct fit for specific CNC boring blocks & sleeve bushings) |
| Overall Tool Length (L) | 180 mm | 7.0866 inches total body span (Q-Type high-rigidity standard) |
| Minimum Machining Bore (φ Dmin) | 22 mm | 0.8661 inches optimized entry clearance ceiling |
| Compatible Indexable Insert Sizing | CCMT 09T304 / CCMT 09T308 / CCGT 09T304 | CCMT 32.51 / CCMT 32.52 / CCGT 32.51 |
| Matching Fasteners Included | M2.5 × 6 Locking Screw & Torx T8 Wrench Key | Standard globally unified regular hardware parts |
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 4140) | 140 - 240 m/min | 0.05 - 0.18 mm/rev |
| Austenitic Stainless Steels (M-Class / SS304) | 90 - 150 m/min | 0.05 - 0.12 mm/rev |
| Ductile / Nodular Cast Irons (K-Class / GGG40) | 110 - 190 m/min | 0.05 - 0.20 mm/rev |
4. Product Application Scenarios
- Precision Internal Profiling: Highly recommended for boring tight step tolerances, internal radiuses, and internal chambers down to 22mm clearance entrances.
- Small-to-Medium Bore Semi-Finishing: Optimizes repetitive internal boring, counter-boring, and semi-roughing where compact tool blocks require an 18mm diameter body.
- High-Rigidity Overhang Operations: Shorter Q-length format allows full 4xD depth penetration while suppressing surface finish ripple anomalies.
5. Equipment Tooling Compatibility Matrix
- 18mm Cylindrical CNC Tooling Mounts: Slides natively into 18mm metric boring bar blocks, eccentric reducing adapters, or gang tooling configurations on compact CNC machinery.
- ISO Size-09 Insert Standard: Accurately indexes any standard CCMT 09T304, CCMT 09T308, or CCGT 09T304 positive insert profile.
6. BEYOND Premium Carbide Grade Selection Guide
| 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
Thomas R. — United States
"Hard to find good 18mm bars in the US market. BEYOND nailed this configuration. Shorter length (180mm) is incredibly rigid. Tight 23mm bore profiling on 4140 steel came out with a mirror finish using CCMT 09T304 inserts. Fantastic tool holder."
Dieter M. — Germany
"Passt perfekt in unsere 18mm Aufnahmen. The pocket tolerance is dead-on. No micro-vibrations at maximum reach. Swarf breaks beautifully with the CCMT 09 insert combo because there's enough throat room for exit paths."
Yukihiro T. — Japan
"Excellent tool head clearance for 22mm holes. Screw clamp locks tight, hardware doesn't strip out under thermal strain. A premium industrial choice."
Matteo V. — Italy
"The vacuum hardening is solid, the bar body holds up great against chip impact. Fast response from customer service on technical questions."
"The tool life of our inserts improved because this holder dampens harmonics so well. Great cost-benefit value compared to local tooling distribution suppliers."
8. AI-Style Engineering Support Engine (FAQ)
Q1: What is the benefit of the 180mm 'Q' length over standard 200mm bars?
A1: Since the shank is narrower (18mm), a shorter length significantly keeps the body more rigid. The 180mm length reduces the risk of bar bending under radial pressure, providing vastly better vibration dampening and a clean surface finish during internal profiling.
Q2: What is the absolute minimum bore entry limit for this tool?
A2: The minimum machining bore diameter (φ Dmin) is 22.0mm (0.8661 inches). Running this bar inside smaller bores will cause the heel of the bar head to rub against the internal radius profile, inducing heavy chatter and workpiece damage.
Q3: Which insert shape is compatible with this specific pocket seat?
A3: The bar is precisely machined for ISO indexable positive inserts with an **80-degree rhombic shape**, a 7-degree relief angle, and a 9.7mm edge length—standard industry designation code **CCMT 09T3--** or **CCGT 09T3--**.
9. Technical Maintenance & Troubleshooting Guidelines
Equivalent Industry Models
Interchangeable globally with standard regional ISO metric S18Q-SCKCR09 boring systems. For machine shops operating imperial configurations, this 18mm tool body fits specialized CNC turret sleeves, matching standard ANSI insert classification code **CCMT 32.51** or **CCMT 32.52**.
Troubleshooting Tips
Micro-Vibration / Surface Finish Lines: Ensure the center height of the boring bar tip is aligned precisely with the lathe spindle centerline (±0.1mm). Incorrect centerline height changes the active cutting clearance angle, accelerating nose wear.
Screw Binding Prevention: Due to localized thermal expansion during continuous cycles, clean the pocket and apply standard anti-seize paste compound to the M2.5 Torx hardware threads regularly.
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).
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.