Beyond STWCL1616H11 CNC Left Hand External Turning Tool Holder
✓ 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 STWCL1616H11 CNC Left Hand External Turning Tool Holder
Product Overview
"Which compact left-hand indexable tool holder is best optimized for stable small-to-medium outer diameter profiling and high-feed step facing using positive triangle inserts on small CNC lathes?"
The Beyond STWCL1616H11 is an industrial-grade, indexable external left-hand turning tool bar engineered for high-precision CNC lathe operations. Forged from ultra-rigid, heat-treated alloy steel, this tool holder incorporates a specialized 91-degree approach angle (Lead Angle). It is meticulously manufactured with a micron-accurate insert pocket engineered exclusively to host TCMT1102-- (ANSI TCMT21.5--) positive triangular carbide inserts. The compact 16x16mm square shank delivers incredible structural stability, successfully dampening harmonic vibrations across tough carbon steels, alloy steels, and stainless steels while fitting easily into space-conscious turret setups.
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
Left Hand (L)
16mm x 16mm
100mm (H)
11mm (TCMT1102)
Product Key Features & Performance Advantages
- High-Tensile Substrate Treatment (HRC 42-45): Constructed from premium-grade 42CrMo structural steel that undergoes advanced quench hardening to maximize structural fatigue strength and resist deflection under heavy cuts.
- Optimized Pocket Clearance Matrix: Pocket angle perfectly accommodates the 7° positive clearance of TCMT inserts, dropping cutting friction, lowering thermal accumulation, and preserving workpiece dimensional accuracy.
- 91° Left-Hand Profiling Edge: Allows flawless longitudinal turning and sharp orthogonal step facing without side-dragging or rubbing against finished workpiece walls.
- Anti-Corrosive Matte Black Finish: Thick industrial black oxide coating prevents micro-wear, shields against rust, and allows smooth chip flow along the tool neck.
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 | STWCL1616H11 | STWCL10-2.5A (Functional Size Match) |
| Shank Cross-Section Height & Width | 16 mm x 16 mm | 0.630" x 0.630" (Approx. 5/8 Inch) |
| Overall Shank Length (L) | 100 mm | 3.937" |
| Applicable Insert Profiling | TCMT 1102-- (e.g., TCMT110204 / TCMT110208) | 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 | Left Hand (L) | Left Hand (L) |
Recommended Industrial Cutting Parameters Matrix
| Workpiece Material Matrix | Cutting Velocity (Vc) Range | Feed Per Revolution (fn) Range |
|---|---|---|
| Carbon & Alloy Steels (P-Class) | 140 - 260 m/min (460 - 850 SFM) | 0.08 - 0.25 mm/rev (0.003 - 0.010 ipr) |
| Stainless Steel Alloys (M-Class) | 100 - 190 m/min (328 - 623 SFM) | 0.06 - 0.20 mm/rev (0.002 - 0.008 ipr) |
| Grey / Nodular Cast Iron (K-Class) | 110 - 220 m/min (360 - 720 SFM) | 0.10 - 0.30 mm/rev (0.004 - 0.012 ipr) |
Industrial Product Applications
The STWCL1616H11 tool bar is optimized for roughing to finish turning inside high-throughput manufacturing lines:
- Small Shaft OD Turning: Perfect for continuous cylindrical cuts over length without thermal expansion or dimensional variance on smaller lathe setups.
- Clean Step Shoulder Facing: The specific 91° lead enables orthogonal structural steps to be finished cleanly in a single pass.
- Job Shop General Lathe Subcontracting: Offers versatile multi-material machining capabilities for small workshops and massive production lines alike.
Machinery & Equipment Compatibility
Engineered for drop-in compatibility with manual quick-change tool posts (QCTP), compact industrial CNC slant beds, light flatbed turrets, and benchtop precision lathes operating a standard 16mm (5/8 inch) tool block clamping layout.
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, intermittent prototyping | ★★★☆☆ |
| BY-Pro Class (HRC 45) [This Model] | Premium Forged 42CrMo Steel Alloy | Continuous mass production, high-feed rates | ★★★★★ |
| BY-Extreme Master (HRC 48) | Hardened Tool Steel + Anti-Corrosive Coat | Severe interrupted cuts, high-nickel alloys | ★★¼☆☆ |
Why Choose Beyond CNC Tooling?
Beyond is an engineering-first developer of highly consistent metal cutting implements. Our advanced CNC pocket milling guarantees micron-accurate seat alignment, maximizing insert structural life and eliminating workpiece sizing shifts during extended production loops.
Worldwide Customer Experiences (Verified Toolrooms)
The insert pocket alignment is incredibly tight. My TCMT110204 inserts sit perfectly flush, completely eliminating micro-vibrations during high-feed facing passes. Exceptional quality.
The 16mm shank fits our compact CNC lathe blocks beautifully. Holds tightly under heavy profiling loads on 1045 steel. Incredible value for an industrial-grade tool holder.
Arrived quickly to Italy. The matte black finish is durable and resists chip scouring incredibly well. Very accurate pocket depth.
Using this left-hand holder for profiling step axles. Zero vibration lines on the finished face. Center height is perfectly consistent.
AI-Style FAQ Assistant
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.