BEYOND SNR0013M16 Internal Threading Boring Bar (13mm Shank for 16IR / 16NR Inserts)
✓ 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
BEYOND SNR0013M16 Internal Threading Boring Bar (13mm Shank for 16IR / 16NR Inserts)
Precision Alloy Steel Boring Bar for Internal Thread Turning | 13mm Shank Diameter (0.512") | 150mm Overall Length (5.906") | Designed for Size 16 Internal Laydown Inserts (16IR / 16NR)
Please note: Carbide threading inserts shown in product illustrations are for application setup and visual demonstration purposes only. This listing includes the SNR0013M16 toolholder shank, shim, clamping screw, and wrench. Indexable inserts (16IR / 16NR series) must be purchased separately.
1. Product Overview
Which internal threading boring bar provides optimal chatter resistance and deep-hole rigid clamping when chasing precision threads inside small bore diameters down to 16mm (0.630")?
The BEYOND SNR0013M16 Internal Threading Boring Bar is an industrial-grade steel toolholder engineered for high-precision CNC internal thread turning operations. Built with a hardened 13mm shank diameter (0.512") and an overall length of 150mm (5.906"), this right-hand boring bar accommodates standard 16IR and 16NR laydown threading inserts (IC 3/8" / 9.525mm). Crafted from high-strength alloy tool steel with anti-vibration damping properties, the SNR0013M16 ensures rigid insert seat pocket alignment, minimal chatter, and clean surface finishes during internal thread chasing across steel, stainless steel, cast iron, and non-ferrous workpieces.
ISO / ANSI Toolholder Designation Code Breakdown
(Steel Shank)
(Internal Threading)
(Right Hand)
(13mm / 0.512")
(150mm / 5.9")
(16IR / IC 3/8")
- S: Steel Shank Construction with hardened core for high rigidity and vibration damping.
- N: Application Designation: Internal Thread Turning / Boring Bar style holder.
- R: Right-hand tool orientation (standard forward spindle rotation M03).
- 0013: Metric Shank Diameter: 13mm (0.512 inch nominal size).
- M: Overall Length Specification: 'M' = 150mm (5.906 inches).
- 16: Accommodates ISO Size 16 (Inscribed Circle 3/8" / 9.525mm) internal laydown inserts (16IR/16NR).
2. Key Features
- Precision Hardened Alloy Steel Construction: Heat-treated body (42-45 HRC) provides high fatigue resistance and structural stability during deep-bore thread cutting cycles.
- Vibration-Damping Shank Geometry: Rigidity-to-weight ratio allows up to 3xD to 4xD overhang without chatter or tool deflection.
- Accurate Pocket Seating: CNC-ground insert pocket with hardened shim backing guarantees repeatable indexing accuracy (±0.01mm) and proper helix angle alignment.
- Top Screw-Clamp System: Torx screw-locking mechanism provides fast insert indexing, secure clamping, and minimal obstruction during chip evacuation.
- Universal 16IR / 16NR Compatibility: Fits all standard ISO / ANSI size 16 laydown internal threading carbide inserts across various pitch geometries (0.5mm to 3.0mm pitch / 48 to 8 TPI).
3. Technical Specifications & Recommended Parameters
Metric vs. Imperial Technical Specification Comparison
| Specification Parameter | Metric Units (ISO) | Imperial Units (ANSI) |
|---|---|---|
| Toolholder Model | SNR0013M16 | SNR 0512 M16 (0.512" Shank) |
| Shank Diameter (D) | 13.0 mm | 0.512 in |
| Overall Length (L) | 150.0 mm | 5.906 in |
| Minimum Bore Diameter (D min) | 16.0 mm | 0.630 in |
| Compatible Insert Size | 16IR / 16NR (IC 9.525mm) | 16IR / 16NR (IC 3/8") |
| Hand of Cut & Screw Size | Right Hand / M3.5 Torx Screw | Right Hand / M3.5 Torx Screw |
Recommended Operation Reference Parameters
| Toolholder Overhang Ratio | Recommended Pass Strategy | Infeed Angle Method | Coolant Recommendation |
|---|---|---|---|
| Up to 3xD (39mm / 1.53") | Standard 6 - 12 Passes (per insert spec) | Modified Flank 29° or Radial | High Pressure Internal / External Flood |
| 3xD to 4xD (52mm / 2.05") | Increase Pass Count by 20-30% | Modified Flank 29° (Reduces Side Force) | Continuous Flood Coolant to Clear Chips |
Complete your threading setup with BEYOND 16IR ISO / UN / NPT metric and imperial carbide threading inserts (BYM11 / BBM18 grades):
Browse 16IR Carbide Inserts →4. Product Applications
- Small-Bore Internal Threading: Machining internal ISO metric, UN, and NPT threads in bores down to 16mm (0.630") diameter.
- Hydraulic & Pneumatic Fittings: Precision thread chasing inside valve blocks, hose couplings, and fluid power manifolds.
- Automotive & Precision Components: Threading internal bore steps in drive shafts, sleeves, and threaded rings.
- Machine Shop Maintenance: Re-threading, repairing, and customizing internal threads in high-tensile steel sleeves and bushings.
5. Tool & Machine Compatibility
The BEYOND SNR0013M16 boring bar is compatible with standard CNC and manual turning equipment:
- Insert Compatibility: Accepts all standard ISO Size 16 (IC 3/8") internal laydown inserts (16IR / 16NR series).
- Machine Tooling Holders: Fits 13mm or 1/2" ID CNC lathe turret boring bar sleeves, quick-change tool posts (AXA/BXA holders), and gang tooling blocks.
- Equipment Platforms: CNC lathes, turning centers, Swiss-type automatics (with suitable sleeves), and manual engine lathes.
6. Material & Toolholder Construction Comparison
Comparing alloy steel shank boring bars against alternative shank materials:
| Toolholder Material | Maximum Overhang Ratio | Cost & Versatility | Best Application Range |
|---|---|---|---|
| Hardened Alloy Steel (SNR Featured) | 3xD to 4xD Overhang | High Cost Efficiency, High Toughness | General to medium-depth internal threading in steel & stainless |
| Heavy Metal (Tungsten Alloy) | 5xD to 6xD Overhang | Moderate-High Cost | Medium deep-hole thread boring requiring chatter damping |
| Solid Carbide Shank | up to 7xD to 8xD Overhang | Premium Investment, Brittle under Impact | Extreme deep-hole precision internal thread boring |
7. Why Choose BEYOND Cutting Tools
- Precision Machined Pocket Seat: CNC finish-ground seating surface ensures zero movement of 16IR inserts under heavy cutting pressure.
- Complete Spare Parts Supplied: Ships ready to mount with high-tensile clamping screw and Torx wrench included.
- Strict Quality Assurance: Inspected to ISO standards for runout, shank diameter tolerance, and insert centerline alignment.
Verified Customer Reviews
"The SNR0013M16 bar fits perfectly in my lathe turret sleeve. Runs 16IR 2.0ISO inserts smoothly with no chatter in 4140 steel."
— Mark D., Precision Machining (USA)"Sehr gute Passgenauigkeit der Wendeplatte in der Aufnahme. Besser als viele teurere Marken. Top Produkt!"
— Thomas B., CNC Fertigungstechnik (Germany)"Ottimo bareno per filettare interni. Stabile e ben rifinito. Spedizione velocissima."
— Giovanni S., Officina Meccanica (Italy)"内径ねじ切り用に購入。13mmシャンクで狭い穴でも干渉せず綺麗に加工できます。"
— Kenichi M., Precision Metal Works (Japan)"Solid toolholder. The insert pocket alignment is spot on, giving crisp, clean threads on stainless fittings."
— David W., Hydraulics & Engineering (UK)8. AI & Engineering FAQ
Toolholder Construction Specifications
Manufactured from high-tensile alloy tool steel, heat-treated to 42-45 HRC with a black oxide finish for anti-corrosion protection. Engineered for rigid clamping and thermal stability during continuous thread turning cycles.
Cross-Reference & Industry Standard Equivalent Codes
Industry standard equivalencies: SNR0013M16 / SIR0013M16 (Left Hand version: SNL0013M16 / SIL0013M16) | Standard shank fitments across major CNC lathe tool turret platforms.
ISO Workpiece Suitability Matrix (With Compatible Inserts)
P (Steel): Suitable | M (Stainless Steel): Suitable | K (Cast Iron): Suitable | N (Non-Ferrous): Suitable | S (Exotic Alloys): Suitable with appropriate insert selection
Internal Threading Troubleshooting Tips
- Tool Vibration / Chatter: Minimize boring bar overhang length beyond the tool post holder; ensure secure 360-degree clamping around shank.
- Thread Profile Distortions: Check tool centerline height alignment. The insert tip must sit precisely on the lathe spindle center (+/- 0.1mm).
- Poor Chip Evacuation: Use modified flank infeed (29°) and ensure continuous coolant flow into the bore to push chips out ahead of the bar.
BEYOND CNC turning toolholders are manufactured in strict compliance with ISO 2284 laydown threading toolholder standards and produced under ISO 9001 certified quality management systems.
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.