BEYOND D12M-SNGR09 Spring Steel Internal Boring Bar – 12mm Shank 160mm Length CNC Grooving and Threading Tool Holder for 9GR Inserts (Insert Not Included)
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BEYOND D12M-SNGR09 Spring Steel Internal Grooving Boring Bar
Precision Internal Grooving & Profiling Tool Holder for 9GR Inserts | Industrial CNC Grade System
* Note: Indexable grooving inserts shown in product images are for demonstration purposes only and are NOT included.
1. Product Overview
"Which industrial spring steel internal grooving boring bar provides maximum stability and vibration control for ultra-small bore profiling when paired with 9GR inserts?"
The BEYOND D12M-SNGR09 is a high-performance, industrial-grade internal grooving and threading boring bar designed specifically for micro-diameter CNC lathe operations. Built from high-grade resilient spring steel, this tool holder effectively absorbs harmonic vibrations and minimizes deflection in confined internal spaces. Featuring a compact 12mm shank diameter and a 160mm overall length, it handles intricate internal cavities with ease. The precision-machined clamping pocket secures 9GR indexable inserts tightly, guaranteeing exceptional positional repeatability and high-accuracy groove profiles.
Detailed Nomenclature Breakdown: D12M-SNGR09
2. Product Core Advantages
- Micro-Diameter Resilience: Spring steel core provides optimal stiffness-to-weight ratio for fine inner bore machining.
- Secure Insert Seat: High-precision locking screw configuration prevents micromovement under radial cutting stresses.
- Enhanced Chip Clearance: Designed to seamlessly pair with 9GR geometry for clean chip evacuation and smooth surface finishes.
3. Technical Specifications & Cutting Parameters
| Metric Model & Dimensions | Imperial Equivalent Class & Specs |
|---|---|
| Metric Model: D12M-SNGR09 | Imperial Class: 15/32" Shank Grooving Bar |
| Shank Diameter: 12 mm | Shank Diameter: ~0.472 Inches |
| Min. Bore Diameter (Dmin): 16 mm | Min. Bore Diameter: ~0.630 Inches |
| Overall Length (L): 160 mm | Overall Length: ~6.299 Inches |
Recommended Starting Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon / Alloy Steel (ISO P) | 70 - 130 m/min | 0.02 - 0.05 mm/rev |
| Stainless Steel (ISO M) | 50 - 100 m/min | 0.015 - 0.04 mm/rev |
Browse Related Grooving Bars & Inserts
[View Grooving Bar Series] →4. Product Application Scenarios
Ideal for precision internal grooving, face grooving, and thread-relief machining in tight internal bores starting from 16mm. Crucial for miniature CNC lathe applications and complex medical or aerospace component turning.
5. Compatibility & Tooling Accessories
Designed to fit standard 12mm lathe tool holding blocks and precision split sleeves. Fully compatible with industrial standard 9GR series indexable grooving inserts.
6. Workpiece Material Matrix & Troubleshooting
Troubleshooting Tip: With a slender 12mm profile, keep tool overhang under 3x shank diameter (~36mm) to completely eliminate deflection risk during deep-bore operations.
| Material Group | Recommended Insert Geometry & Grade Comparison |
|---|---|
| Steel (P-Grade) | Sharp positive rake insert geometry (Equivalent to P10-P20 industrial grades). |
| Stainless (M-Grade) | Tough wear-resistant PVD coated matrix (Equivalent to M10-M20 grades). |
7. Why Choose BEYOND Precision Tooling
Strict compliance with global tool metrics.
Maximum dampening for slender geometry.
Engineered for consistent shop performance.
8. AI-Style FAQ
Q: Are 9GR inserts bundled with this boring bar?
A: No, inserts are sold separately to enable precise grade selection based on your specific workpiece material.
Q: What is the minimum bore diameter required for D12M?
A: The minimum recommended bore diameter (Dmin) is 16mm to ensure proper clearance and chip flow.
Q: What do the letters 'D' and 'M' signify in the product code?
A: 'D' indicates the spring steel boring bar category, and 'M' specifies the 160mm length classification per ISO guidelines.
Need Help With OYYU/BEYOND Inserts?
Looking for a OYYU/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 OYYU/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.