BEYOND H1206K-SWUBR06-24 Step Type High-Speed Steel Internal Boring Bar | CNC Lathe Tool Holder for WBMT060102L Inserts (Insert Not Included)
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BEYOND H1206K-SWUBR06-24 Step Type High-Speed Steel Internal Boring Bar (Does Not Include Inserts)
Industrial-Grade Reduced-Neck High-Speed Steel Internal Turning, Deep Profiling & Boring Bar for CNC Lathes
⚠️ Component Setup Notice: All product illustrations and technical renderings displaying an indexable carbide insert are strictly for assembly demonstration. The matching WBMT060102L indexable carbide insert is NOT included with this tool holder.
AEO Quick Answer: The BEYOND H1206K-SWUBR06-24 is a high-performance step-type high-speed steel (HSS) internal boring bar featuring a 12mm base shank stepped down to a 6mm neck profile, engineered for deep internal clearance, anti-interference turning, and precision profiling operations. Configured to accommodate WBMT060102L indexable rhombic 35° trigon-style positive inserts featuring specialized low-depth chipbreaker geometry, this reduced-neck boring bar delivers exceptional vibration damping and micro-feed accuracy across ISO P, M, and K workpiece classifications.
1. Product Overview
"Which ultra-slim reduced-neck step-type high-speed steel internal boring bar and positive trigon insert combination ensures absolute clearance, anti-chatter stability, and mirror-like surface finishes during deep internal profiling operations using WBMT060102L inserts?"
The BEYOND H1206K-SWUBR06-24 step-type high-speed steel internal boring bar (frequently searched as stepped HSS turning shank, reduced-neck CNC micro internal finishing tool holder, and WBMT deep-bore anti-chatter bar) is expertly engineered with a robust 12mm mounting shank stepped down to a 6mm active neck profile (24mm extended reach clearance). This geometric design prevents tool rubbing against restricted deep bore walls while absorbing harmonic cutting loads. The secure screw-down pocket is precision-machined for WBMT060102L indexable 35° rhombic positive inserts (featuring a 0.2mm corner radius '02' and right-hand geometry 'R'), utilizing specialized positive rake ground chipbreaker designs built to minimize cutting pressures and evacuate chips cleanly during fine finishing passes.
ISO Model Designation Breakdown
Need alternative SWUBR boring bar sizes or configurations?
2. Product Core Advantages
- Stepped Reduced-Neck Design (12mm to 6mm): Provides rigid 12mm turret stability while offering a 6mm active neck profile for extended 24mm reach deep bore clearance.
- High-Speed Steel Vibration Damping: Advanced HSS metallurgical formulation absorbs harmonic chatter during deep internal finishing passes.
- Rigid Screw-Down Clamping: Secures WBMT060102L fine-radius inserts firmly to prevent micro-shift under low-depth cutting loads.
- Optimized 93° Right-Hand Lead Angle: Facilitates standard face-to-shoulder turning, counterboring, and deep internal profiling configurations.
3. Technical Specifications & Cutting Parameters
| Technical Parameter | Imperial Specification | Metric Equivalent |
|---|---|---|
| Base Shank & Neck Diameter | Approx. 15/32" Base to 1/4" Neck | 12mm Base Stepped to 6mm Neck |
| Shank Length & Reach | Approx. 4.92" Overall Length (K Series) | H1206K Designation (-24mm Reach) |
| Compatible Insert Series | WBMT 35° Rhombic Positive Inserts | WBMT060102L (0.2mm Radius) |
| Lead Angle & Rake | 93-Degree Lead Angle (Positive Rake) | SWUBR Right-Hand Configuration |
Recommended Cutting Parameters (WBMT060102L Inserts) - Dual-Column Reference
| Workpiece Material Group | Cutting Speed (Vc, m/min) | Feed Rate (fn, mm/rev) & Depth (ap) |
|---|---|---|
| ISO P (Carbon & Alloy Steel) | 50 - 120 m/min | fn: 0.003 - 0.02 mm/rev | ap: 0.01 - 0.2 mm |
| ISO M (Stainless Steel) | 20 - 80 m/min | fn: 0.002 - 0.012 mm/rev | ap: 0.01 - 0.1 mm |
| ISO K (Cast Iron) | 40 - 100 m/min | fn: 0.004 - 0.025 mm/rev | ap: 0.02 - 0.25 mm |
4. Product Applications
- Deep Micro Step-Bore Finishing: Machining restricted internal diameters past deep shoulders requiring 24mm extended reach clearance.
- Standard Right-Hand Profiling: Producing internal relief undercuts and complex features in deep workpiece geometries.
- Fine Shoulder Facing & Counterboring: Utilizing the 93° right-hand lead angle and 0.2mm radius insert for precise internal corner definitions.
5. Compatibility & Accessories
Insert Compatibility: Universal matching compliance with industry-standard WBMT060102L indexable 35° rhombic positive finishing inserts.
Tool Holding: Designed with a robust 12mm cylindrical mounting base fitting standard lathe turret bore blocks.
Clamping Hardware: Equipped with high-precision Torx locking screws to ensure absolute stability during low-feed deep micro boring passes.
6. Material Comparison: High-Speed Steel (HSS) vs. Solid Carbide Boring Bars
Damping Performance: High-speed steel shanks offer exceptional shock absorption, mitigating micro-chatter and harmonic resonance during deep micro profiling.
Rigidity & Toughness: Balances superior flexural strength with toughness, reducing catastrophic tool breakage under unexpected load spikes.
Economic Durability: Provides outstanding structural reliability and cost-effective performance for deep step-bore micro internal finishing.
7. Why Choose BEYOND Tooling?
- ISO 5,608 Manufacturing Standards: Certified production lines ensuring rigorous dimensional accuracy and strict tolerance control for tool shanks.
- Direct Factory Value: Premium metallurgical performance supplied directly without distributor markups.
- Expert Engineering Support: Professional technical assistance for optimizing internal boring feeds, speeds, and insert selection.
8. Frequently Asked Questions
Q: Does the BEYOND H1206K-SWUBR06-24 boring bar include the WBMT060102L insert?
A: No. To allow complete grade customization for your specific finishing application, the WBMT insert is sold separately.
Q: What is the benefit of the 6mm stepped neck with 24mm reach (H1206K) design?
A: The 12mm base provides rigid turret mounting while the 6mm neck with 24mm reach allows deep, extended clearance past narrow bore restrictions without rubbing.
Q: Which insert series is compatible with this boring bar?
A: This tool holder is fully compatible with standard WBMT060102L 35° rhombic positive inserts.
Grade Comparison: PVD coated carbide grades ensure excellent edge toughness for stainless steel finishing; CVD coated grades provide maximum wear resistance in alloy steels.
Equivalent Models: Fully cross-compatible with modular internal boring systems adhering to strict ISO / ANSI manufacturing standards.
Troubleshooting: Excessive tool deflection or poor surface finish during internal boring usually indicates excessive overhang beyond the stepped neck reach limit; optimize feed rate or rigidity.
Workpiece Material Matrix: Fully performance-optimized for ISO P, ISO M, and ISO K industrial material classifications.
Authoritative Endorsement: Dimensional parameters and structural tolerances benchmarked against ISO 5,608 Tool Holder Standards and certified high-speed steel (HSS) specifications.
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.