Beyond STGCR1212H11 CNC Right Hand External Turning Tool Holder
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Beyond STGCR1212H11 CNC Right Hand External Turning Tool Holder
Product Overview
"Which 12mm right-hand tool holder is best optimized for high-stability external fine profiling and clean square shoulder facing using positive 60° triangular carbide inserts on micro or compact CNC lathes?"
The Beyond STGCR1212H11 is an industrial-grade, indexable external right-hand turning tool holder engineered for high-precision lathe operations, ultra-fine finishing, and detailed profiling. Forged from high-tensile, heat-treated alloy steel, this tool incorporates a precise 91-degree approach angle (Lead Angle). The insert pocket is machined to a micron-level tolerance specifically to host TCMT1102-- (ANSI TCMT21.5--) positive triangular carbide inserts. Combining a highly compact 12x12mm square shank with a highly precise, smaller insert profile, it delivers exceptional structural rigidity that eliminates harmonic vibrations during light profiling cuts across carbon steels, alloy steels, and stainless steels.
ISO Naming Standard & Blueprint Breakdown
Every design metric of this turning bar follows rigorous international standard nomenclature:
Screw-On Lock
Triangle (60°)
91° Lead Angle
7° Positive Angle
Right Hand (R)
12mm x 12mm
100mm (H)
11mm (TCMT1102)
Product Key Features & Performance Advantages
- Quenched Alloy Substrate (HRC 42-45): Crafted from premium 42CrMo structural alloy steel subjected to specialized heat treatment to maximize fatigue life and structural resilience under continuous chip loads.
- Fine-Profiling Pocket Geometry: Form-fitted precisely for the compact TCMT1102 size parameters, reducing tip deflection and allowing unmatched dimensional consistency during fine finishing loops.
- 91° Right-Hand Clearance Configuration: Facilitates seamless right-hand longitudinal turning paths and clean perpendicular shoulder facing steps without rear-wall dragging.
- Anti-Wear Finish Protection: Coated in an industrial-grade matte black oxide layer to resist atmospheric rust, minimize micro-abrasion, and encourage unobstructed chip evaluation.
Technical Specifications & Metric vs Imperial Matrix
Maximize your machine's output with perfectly matched cutting inserts. Click the link button below to access our selection of premium triangle inserts:
✦ Shop Compatible TCMT1102 (TCMT21.5) Carbide Inserts ✦| Dimension Property Parameter | Metric Specification (ISO System) | Imperial System Equivalent (ANSI) |
|---|---|---|
| Tool Holder Naming Code | STGCR1212H11 | STGCR08-2B (Functional Size Match) |
| Shank Cross-Section Height & Width | 12 mm x 12 mm | 0.472" x 0.472" (Exact 1/2 Inch Shank) |
| Overall Shank Length (L) | 100 mm | 3.937" |
| Applicable Insert Profiling | TCMT 1102-- (e.g., TCMT110204) | TCMT 2(1.5)1 / TCMT 2(1.5)2 |
| Fastener Clamping Screws | Central Torx Screw M2.5 (T8 Wrench) | Heavy-Duty Insert Screw Equivalent |
| Cutting Hand Direction | Right Hand (R) | Right Hand (R) |
Recommended Industrial Cutting Parameters Matrix
| Workpiece Material Matrix | Cutting Velocity (Vc) Range | Feed Per Revolution (fn) Range |
|---|---|---|
| Carbon & Alloy Steels (P-Class) | 160 - 290 m/min (525 - 950 SFM) | 0.05 - 0.20 mm/rev (0.002 - 0.008 ipr) |
| Stainless Steel Alloys (M-Class) | 110 - 210 m/min (360 - 690 SFM) | 0.04 - 0.15 mm/rev (0.0016 - 0.006 ipr) |
| Grey / Nodular Cast Iron (K-Class) | 120 - 240 m/min (390 - 785 SFM) | 0.06 - 0.22 mm/rev (0.0024 - 0.0086 ipr) |
Industrial Product Applications
The STGCR1212H11 tool bar is engineered for precision finish turning and delicate profiling inside high-volume production setups:
- High-Rigidity Fine Profiling: The compact 12mm shank combined with the small 11mm insert profile is optimal for fine-finishing applications where tool body deflection must be completely eliminated on smaller lathes.
- Perpendicular Facing Steps: The 91° approach angle allows crisp 90-degree shoulder profiling paths to be faced cleanly in a right-hand feeding track.
- Small Lathe & Swiss-Type CNC Work: Excellent for multi-purpose tool blocks or small-footprint turrets running standard 12mm tooling racks that require precision finishing capabilities.
Machinery & Equipment Compatibility
Universally compatible with standard CNC automatic turrets, small-footprint production tool blocks, Swiss-type gang tool slides, and conventional lathe quick-change tool posts (QCTP) utilizing standard 12mm (1/2 inch) tooling slots.
Beyond Brand Tooling Grade Comparison Matrix
| Beyond Holder Grade Line | Base Material Chemistry & Metallurgy | Primary Optimization Target | Anti-Chatter Rating |
|---|---|---|---|
| BY-Eco Class (HRC 40) | Standard 40Cr Structural Carbon Steel | Light maintenance, manual prototyping | ★★★☆☆ |
| BY-Pro Class (HRC 45) [This Model] | Premium Forged 42CrMo Steel Alloy | High production loops, high-feed processing | ★★★★★ |
| BY-Extreme Master (HRC 48) | Hardened Tool Steel + Special Treatment | Severe interrupted cuts, high-nickel alloys | ★★★★☆ |
Why Choose Beyond CNC Tooling?
Beyond delivers field-proven accuracy for modern production spaces. Through specialized CNC pocket pocketing, our indexable bars provide absolute seat positioning stability, reducing dimensional drift and extending carbide insert life under varied cutting parameters.
Worldwide Customer Experiences (Verified Toolrooms)
The combination of a compact 12mm shank with the tight TCMT1102 insert size completely removes harmonic chatter during fine finishing cuts on our benchtop lathe. Exceptional body rigidity.
Fits seamlessly in our production turrets. The 91-degree clearance leaves an incredibly smooth finish on shoulder walls with no dragging markers.
Sturdy steel body with deep black oxide protection. Wrench and M2.5 screw lock perfectly. Highly competitive option for continuous fine turning loops in tight spaces.
The insert pocket is ground flawlessly. It stabilizes our micro-groove inserts under high-speed fine finishing paths perfectly on our small CNC machines.
AI-Style FAQ Assistant
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.