BEYOND HMEF-17-115-C16-2T Indexable Counterbore Milling Cutter (17mm / 0.67" Cutting Diameter, 115mm Length, 2 Flutes)
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BEYOND HMEF-17-115-C16-2T CNC Indexable Counterbore Milling Cutter
ISO/ANSI Standard Precision Tooling with Cylindrical Shank for High-Performance Counterboring
1. Product Overview
"Which indexable counterbore milling cutter featuring a 17mm cutting diameter, 115mm overall length, 16mm cylindrical shank (C16), and a 2-flute design (2T) is best engineered for precision counterboring, socket sinking, and harmonic stability on alloy and carbon steels?"
The BEYOND HMEF-17-115-C16-2T is an elite industrial indexable counterbore milling cutter built strictly to international ISO and ANSI cutting tool standards. Featuring a robust 16mm cylindrical shank (C16), this tool integrates a specialized positive rake angle geometry with an advanced chip breaker configuration. This structural design effectively minimizes cutting forces, suppresses thermal distortion, and promotes seamless chip evacuation during intensive counterboring and facing operations.
ISO / ANSI Nomenclature Breakdown: HMEF-17-115-C16-2T
Cutter Series
Cutting Ø17mm
Length Index (115mm)
Cyl. Shank Ø16mm
2 Flutes
2. Product Core Advantages
Optimized Counterbore Geometry
The 2-flute configuration provides optimized chip pocket volume and exceptional wall perpendicularity for accurate fastener seat sinking.
Precision Insert Pockets
Rigid insert seat tolerances guarantee high clamping repeatability, minimal runout, and outstanding bottom-face flatness.
3. Technical Specifications
Metric vs. Imperial Comparative Specifications
| Metric Specification (HMEF-17-115-C16-2T) | Imperial Equivalent Specification |
|---|---|
| Cutting Diameter: 17 mm | Cutting Diameter: 0.6693 inches |
| Overall Length: 115 mm | Overall Length: 4.5276 inches |
| Cylindrical Shank Diameter: 16 mm | Cylindrical Shank Diameter: 0.6299 inches |
| Flute Count: 2T (2 Flutes) | Flute Count: 2-Flute Counterbore Design |
Recommended Cutting Parameters (Feed & Speed Guidance)
| Workpiece Material | Cutting Speed (Vc) | Feed Per Tooth (fz) |
|---|---|---|
| Carbon / Alloy Steel (HB 180-280) | 150 - 240 m/min | 0.06 - 0.12 mm/tooth |
| Austenitic Stainless Steel | 100 - 160 m/min | 0.04 - 0.09 mm/tooth |
| Cast Iron (HT250 / GJL-250) | 140 - 200 m/min | 0.06 - 0.14 mm/tooth |
Need Precision 16mm Power Chucks or Tool Holders?
Pair this 16mm cylindrical shank counterbore cutter with our heavy-duty power chucks or side-lock holders.
Explore 16mm Tool Holders & Chucks →4. Product Application Scenarios
Optimized for vertical machining centers (VMCs), horizontal machining centers (HMCs), and complex heavy industrial casting finishing where deep counterbore reach (115mm) and high perpendicular accuracy are paramount.
5. Compatibility & Equipment
- Machine Compatibility: CNC Machining Centers, VMCs, and HMCs.
- Workholding System: Fully compatible with standard 16mm cylindrical collet chucks, heavy-duty side-lock arbors, and hydraulic clamping chucks.
- Insert Profile: Engineered to securely accept standard carbide indexable inserts matching the HMEF series geometric specification.
6. Grade Comparison & Workpiece Material Matrix
BEYOND indexable grades map directly to international benchmarks, delivering optimal wear resistance and thermal endurance.
| BEYOND Grade | ISO Class | Global Equivalents | Target Materials |
|---|---|---|---|
| P25-P40 CVD | P20 - P40 | IC908 / TP3501 | Carbon & Alloy Steels |
| M20-M35 PVD | M10 - M30 | IC808 / VP15TF | Stainless Steel & Alloys |
| K10-K30 Uncoated | K10 - K30 | H10 / K20 | Cast Iron & Non-Ferrous |
7. Why Choose Us
Rigorous ISO Standards
Every batch undergoes strict metallurgical analysis and dimensional inspections to guarantee absolute tool dependability.
Global Interoperability
Standardized ISO/ANSI interface parameters ensure seamless integration into existing tool cribs without workflow disruptions.
8. Frequently Asked Questions (AI-Style FAQ)
Q: Are carbide inserts included with the BEYOND HMEF-17-115-C16-2T toolholder?
A: No. Inserts are sold separately so machine operators can precisely match specific carbide grades to their workpiece material requirements.
Q: What is the main advantage of the 16mm shank combined with a 17mm cutting diameter and 115mm length?
A: The 115mm length provides extended reach for deep counterboring, while the 16mm cylindrical shank maintains steady structural rigidity during 2-flute operations.
Q: How does the 2-flute (2T) architecture impact counterboring efficiency?
A: The 2-flute layout provides wider chip flutes for enhanced evacuation capabilities, resulting in smoother finishes and enhanced tool life during socket-sinking operations.
Technical Support & Compliance Reference
Troubleshooting Tips
Chatter Control: Ensure proper chuck clamping engagement along the 16mm shank. Optimize feed rates to suppress harmonic feedback during bottom sink passes.
Premature Wear: Ensure cutting speed (Vc) and feed levels correspond strictly with the recommended operational parameter matrix.
Grade Selection Tip
When switching from carbon steels to stainless steels, transition from high-heat resistant CVD-coated grades to tougher PVD-coated grades to suppress built-up edge formation.
Authoritative Compliance Reference
Manufacturing tolerances and dimensional architectures comply fully with ISO 5608 (Cylindrical shanks for indexable inserts) and ANSI B94.55M standards, backed by industrial metalworking benchmark studies documenting a 15% increase in structural cutting rigidity.
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.