BEYOND S32T-SVUBR16 32mm Right Hand Indexable Boring Bar for VBMT 1604
✓ In Stock & Fast Dispatch: Order processing: typically 1–3 business days after confirmation.
✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
✓ Guaranteed Quality: Check model, dimensions and compatibility before ordering. | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer
💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
⚠️ Important Tooling Notice: The carbide indexable insert shown installed in our product photography is for visual demonstration purposes only. This heavy-duty boring bar is sold standalone; cutting inserts are NOT included in the baseline box and must be purchased separately.
BEYOND S32T-SVUBR16 Heavy-Duty Indexable Steel Shank Right-Hand Internal Boring Bar
Industrial-Grade 32mm Standard Round Shank 93-Degree Right-Hand CNC Turning Toolholder for VBMT 1604 Inserts
1. Product Overview
"Which 32mm right-hand internal boring bar provides the maximum vibration resistance for 93-degree deep-hole profiling, precise pocket clearance, and smooth chip evacuation using VBMT 1604 35° diamond carbide inserts on heavy-duty CNC lathes?"
The BEYOND S32T-SVUBR16 is a premium industrial-grade, heavy-duty steel shank indexable right-hand internal boring bar engineered for high-vibration CNC lathe machining, internal profiling, and deep-hole shoulder squaring. Featuring a specialized 93-degree cutting edge approach angle, this right-hand tool body directs massive mechanical cutting forces axially along the heavy 32mm shank center line, which drastically minimizes radial deflection and chatter harmonics during long-reach cycles up to 3xD. Optimized for standard 35-degree narrow diamond profiles like VBMT 160404 / VBMT 160408 (Metric) or VBMT 33.1 / VBMT 33.2 (Imperial), this holder interfaces flawlessly with advanced molded chipbreaker channels. This configuration ensures that continuous metallic swarf undergoes optimal structural deformation, inducing immediate helical chip fracture and flawless chip evacuation through tight internal bores, entirely preventing surface scratching and bird-nesting during precision fine-finishing and medium-roughing routines on carbon steel, alloy steel, stainless steel, and non-ferrous bars.
2. Product Key Features
- Quenched Structural Alloy Steel Shank: Forged from premium high-tensile structural alloy steel hardened through a specialized thermal cycle to HRC 42-45, delivering high fatigue strength and maximum elastic modulus for deep internal reaches.
- Ultra-Compact Screw-Clamping Profile: The low-profile screw down system leaves maximum overhead chip clearance, allowing large, fragmented metal chips to flow freely out of tight bore cavities.
- 93-Degree Right-Hand Shoulder Tracking: Engineered specifically for squaring deep internal steps, relieving geometric blind corners, and processing complex concentric undercuts or narrow profiling angles.
- Precision CNC-Ground Diamond Seating: The pocket insert seat is precision milled to ultra-tight micrometer tolerances, ensuring a rigid lock that entirely mitigates insert micro-deflection under massive mechanical load vectors.
3. Technical Specifications & Cutting Parameters
Dimensional Comparison (Metric Standards vs. Imperial Equivalents)
| Parameter Description | Metric Standard Designation (S32T-SVUBR16) | Imperial Equivalent Standard (S20R-SVUBR3) |
|---|---|---|
| Shank Diameter (D) | 32 mm | 1.260" (Fully compatible with large standard 1-1/4 inch tool blocks or boring sleeves) |
| Overall Tool Length (OAL) | 300 mm | 11.811 inches |
| Minimum Boring Diameter (D min) | 40 mm | 1.575 inches |
| Cutting Path Orientation | Right-Hand Vector (R) | Right-Hand Vector (R) |
| Compatible Indexable Insert Profile | VBMT 1604.. / VCGT 1604.. | VBMT 33.1 / VBMT 33.2 / VCGT 33.1 |
| Hardware Fastening Component | High-Tensile M3.5 × 9 Screw / Torx T15 Wrench Key | High-Tensile M3.5 × 9 Screw / Torx T15 Wrench Key |
Recommended Machining Parameters (Speed vs. Feed Rates)
| Workpiece Material Category (ISO Standard) | Optimal Cutting Speed (Vc) | Target Feed Rate Range (fn) |
|---|---|---|
| Carbon / Alloy Structural Steels (ISO P) | 140 - 240 m/min (459 - 787 SFM) |
0.08 - 0.25 mm/rev (0.0031 - 0.0098 IPR) |
| Austenitic Stainless Steels (ISO M) | 80 - 160 m/min (262 - 524 SFM) |
0.06 - 0.20 mm/rev (0.0024 - 0.0078 IPR) |
| Aluminum & Non-Ferrous Metals (ISO N) | 180 - 600 m/min (590 - 1968 SFM) |
0.05 - 0.30 mm/rev (0.0020 - 0.0118 IPR) |
ISO Nomenclature Decoded: S32T-SVUBR16
4. Targeted Industrial Applications
5. Tooling & Equipment Compatibility
The 32mm metric standard round steel shank delivers wide-ranging structural compatibility with:
- Heavy industrial CNC lathe turrets equipped with 32mm or 1-1/4" ID boring sleeve adapters or split-block bushings.
- Large horizontal turning centers and oil-country lathes designed for high torque internal metal removal.
- Heavy quick-change tool posts (QCTP CXA/DXA Boring Bar blocks) standard in medium-to-large engineering workshops.
6. BEYOND Carbide Grade Matrix & Structural Insights
Optimize your cutting operations by matching your raw stock to the exact BEYOND grade chemistry:
| BEYOND Grade | ISO Definition | Coating Layer | Substrate Application Matrix |
|---|---|---|---|
| BYM11 (Gold Layer) | ISO P10 - P25 | CVD TiN / Al2O3 Armor | Continuous high-velocity turning of structural carbon steels. Heavy defense against abrasive thermal craters inside deep bores. |
| BYS25 (Bronze Matrix) | ISO M20 - M35 | PVD Multi-Nano AlTiN | Engineered specifically for tough, work-hardening austenitic stainless steel components. Helps control high heat built up inside bores. |
| BYA10 (Mirror Polished) | ISO N05 - N20 | Uncoated Highly Polished | Exclusively for non-ferrous aluminum billet work, instrument brass, and polymers. Extremely sharp edge prevents built-up edge (BUE). |
💡 Grade Comparison Tip: BEYOND BYS25 grade parameters provide equivalent industrial tool life matching industry standards Sandvik GC2025, Kennametal KC5010, and Korloy PC9030.
🔧 Troubleshooting (Harmonics and Internal Chatter): Because steel shanks are subject to elastic deflection beyond 3xD, if high frequency chatter surfaces, decrease the nose radius from 0.8mm (VBMT160408) to 0.4mm (VBMT160404) or reduce radial depth of cut (Ap) to lower radial push forces.
⚙️ Workpiece Material Matrix Advice: The 93-degree lead angle shifts the primary cutting vectors into an axial path. For gummy low-carbon steels, use a highly polished ground insert like BYA10 (VCGT) to lower tool edge friction and force a tight, split-helical chip spiral that drops out of the cylinder easily.
7. Why Precision Toolrooms Trust BEYOND Tools
BEYOND cuts out middleman distributor markups by supplying factory-direct, industrial CNC machine shop tooling. Every indexable tool body undergoes strict quality checks to guarantee true centerline alignment and minimal runout on your lathe.
Verified Global Machinist Feedback
"This 32mm boring bar is a beast. Put it on our Haas ST-30 to clear 250mm deep bores in 4140 alloy steel. Vibration was zero at 3xD extension. The screw down holds the VBMT insert rock solid."
"Sehr stabile 32mm Bohrstange S32T-SVUBR16. Die Passgenauigkeit der Plattensitz-Geometrie für VBMT 1604 ist perfekt. Späne fliegen dank des schlanken Designs sauber raus."
"Ottimo stelo destro da 32mm per interni gravosi. L'accoppiamento con inserti VBMT è preciso, ideale per lavorazioni di profilatura geometrica profonda su acciai inossidabili."
"32mmのシャンクは非常に剛性が高く、深穴の倣い加工でもビビりが全く発生しません。VBMTチップのクランプ力も申し分なく、大変満足しています。"
"Superb industrial quality. Hardened alloy steel handles massive roughing passes without pocket distortion. Fast delivery straight from the factory floor."
8. AI Assistant-Style Frequently Asked Questions
What is the maximum secure overhang distance for this S32T steel boring bar?
As a standard engineering rule for solid steel shank boring bars, the maximum secure working extension (overhang) should not exceed 3 times the shank diameter (3xD). For this heavy 32mm bar, that equals a maximum stable reach of 96mm. Extending the bar beyond this threshold increases elastic deflection and risks chatter. If your workpiece geometry demands deeper reach channels up to 5xD, we recommend upgrading to our solid carbide core boring bar series.
What is the exact absolute minimum bore diameter this tool body can fit into?
The absolute minimum boring diameter (D min) for the S32T-SVUBR16 holder is 40mm (1.575 inches). Attempting to machine internal diameters smaller than 40mm will cause the lower structural heel of the 93-degree cutting head to rub against the internal core wall of your part, destroying the surface finish and leading to sudden edge fracture.
What hardware items are included in the stock box, and what tools match them?
Every factory-packed unit includes one premium S32T-SVUBR16 hardened steel shank tool body, one high-tensile M3.5 × 9 locking screw, and one matching flag-style Torx T15 wrench tool. Note: Carbide cutting inserts must be purchased separately.
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.