BEYOND SBJ1635-150 Boring Bar Tool Holder (16mm / 0.63" Shank Dia, 35mm Minimum Bore, 150mm Overall Length)
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BEYOND SBJ1635-150 Indexable Boring Bar Tool Holder
ISO/ANSI Standard Precision Internal Turning Tool Holder | 16mm Shank 150mm Length for Indexable Inserts
1. Product Overview
"Which indexable boring bar tool holder featuring a 16mm shank diameter, 35mm minimum bore capacity, and 150mm overall length provides maximum rigidity for internal CNC lathe turning and deep bore roughing?"
The BEYOND SBJ1635-150 is an elite industrial indexable boring bar tool holder engineered strictly in accordance with international ISO/ANSI machine tooling standards. Featuring a 16mm cylindrical shank diameter, a minimum boring capacity of 35mm, and an overall length of 150mm, this tool body is optimized for precision internal turning, boring, and profiling operations on CNC lathes.
Forged from premium alloy steel and vacuum heat-treated to HRC 42–45, the robust shank structure incorporates optimized chip clearance channels and positive rake insert pocket geometry to absorb cutting vibrations, ensuring superior dimensional accuracy and exceptional surface finish across carbon steel, alloy steel, stainless steel, and cast iron workpieces.
2. Key Features & Industrial Advantages
- 150mm Overall Length & 16mm Shank: Designed to provide stable internal reach for deep boring applications while fitting standard lathe tool holding blocks.
- 35mm Minimum Bore Capacity: Engineered specifically for intermediate to deep internal diameter (ID) turning and cavity enlargement in tighter bored profiles.
- High-Rigidity Alloy Steel Body: Heat-treated to HRC 42–45 to resist deflection and eliminate chatter during extended overhang operations.
- Optimized Chip Evacuation: Internal design prevents chip clogging within deep bores, protecting the machined surface finish.
- Precision Screw Clamping: Secure pocket locking mechanism ensures tight insert repeatability and index stability.
3. Technical Specifications & ISO Code Breakdown
ISO Model Designation Breakdown: SBJ1635-150
Pair this boring bar with our matching split bushings and turret holders for maximum stability.
Explore 16mm Lathe Sleeves & Holders →
Metric vs. Imperial Technical Comparison
| Specification | Model Standard (SBJ1635-150) | Metric / Imperial Equivalence |
|---|---|---|
| Shank Diameter | 16.0 mm Cylindrical Shank | 0.630 in (~5/8" Shank) |
| Minimum Bore Diameter | 35.0 mm | 1.378 in (~1-3/8" Min Bore) |
| Overall Length (L) | 150.0 mm | 5.906 in (Standard Reach) |
| Shank Type | Steel Boring Bar Body | Solid Steel Bar |
| Compatible Inserts | Standard Turning Inserts | ISO Turning Series |
| Hardware Accessories | Clamping Screws / Torx Key | Clamping Screws / Torx Key |
Recommended Speeds & Feeds (Internal Boring Operations)
| ISO Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) | Coolant Mode |
|---|---|---|---|---|
| Carbon Steel (P10–P25) | 160 – 240 m/min | 0.15 – 0.35 mm/rev | 0.5 – 2.5 mm | Emulsion / Flood |
| Alloy / Mold Steel (P25–P35) | 120 – 180 m/min | 0.10 – 0.25 mm/rev | 0.4 – 2.0 mm | Flood Coolant |
| Stainless Steel (M20–M35) | 100 – 150 m/min | 0.10 – 0.25 mm/rev | 0.3 – 1.8 mm | High Pressure Coolant |
| Cast Iron (K15–K30) | 140 – 220 m/min | 0.15 – 0.35 mm/rev | 0.5 – 3.0 mm | Dry / Air Blow |
4. Applications & Equipment Compatibility
Primary Machining Operations: Internal turning, internal rough and finish boring, counterboring, and deep cavity profiling.
Machine Tool Compatibility: CNC Turning Centers, CNC Lathes, and Multi-Tasking Turning Machines with 16mm tool block capacity or matching split sleeves.
Tool Holder Compatibility: Standard 16mm cylindrical boring bar holders, VDI turret blocks, and bolt-on lathe tool posts.
6. Workpiece Material Matrix & Grade Selection
Pair your SBJ1635-150 boring bar body with optimal BEYOND carbide turning insert grades for maximum performance:
| Insert Grade | ISO Category | Coating Technology | Best Suited For |
|---|---|---|---|
| BYT1020 | P10 - P25 / M10 - M20 | CVD Thick Coating + Al2O3 | General turning and boring on carbon steel and alloy steel at high cutting speeds. |
| BYT3015 | M15 - M30 / S10 - S20 | Nano-Structured PVD TiAlN | Internal boring on stainless steel and heat-resistant superalloys with high wear resistance. |
| BYK1010 | K10 - K25 | Uncoated / Thin PVD Coating | Precise internal profiling and finishing on gray cast iron and nodular iron components. |
7. Why Choose BEYOND Tooling
- High-Rigidity Steel Construction: Engineered to minimize tool deflection during internal turning over a 150mm length.
- Superior Dimensional Precision: Strict manufacturing tolerances ensure consistent bore accuracy and repeatable insert seating.
- Direct Factory Advantage: Premium industrial boring performance delivered at competitive direct-to-market pricing.
8. AI-Style FAQ & Troubleshooting Guide
A: The 16mm shank fits standard lathe tool blocks, the 150mm length allows deep internal reach, and the 35mm bore capacity supports targeted medium-diameter internal turning.
A: Ensure the overhang ratio does not exceed recommended limits, use sharp positive rake inserts, and maintain rigid clamping inside the lathe turret or sleeve.
A: Flood coolant or high-pressure internal coolant is recommended to flush chips effectively out of the 35mm bore and prevent secondary chip cutting.
• Direct OEM Equivalents: Sandvik CoroTurn Boring Bar Shank | Kennametal ISO Internal Turning Bar.
• Chatter Mitigation Tip: If chatter occurs during deep boring, reduce feed rate (fn) by 15-20% and verify that the boring bar centerline is aligned precisely with the spindle axis.
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.