BEYOND WC40-4D-SD50-WC08 U-Drill | 50mm Indexable Insert Drill (4D Depth)
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BEYOND WC40-4D-SD50-WC08
Industrial 4D Indexable U-Drill | 50mm Heavy-Duty CNC Machining
High-Efficiency 50mm Indexable Drilling
The BEYOND WC40-4D-SD50-WC08 is a professional indexable insert drill engineered for large-scale industrial applications. Featuring a 50mm cutting diameter and a 4D depth-to-diameter ratio, this tool is the definitive choice for high-speed internal cooling drilling. It is optimized for processing carbon steel, alloy steel, and cast iron with maximum structural rigidity during large hole CNC machining.
Model Code Specification
Technical Data & Metric/Imperial Comparison
| Dimension | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Cutting Diameter | 50.0 mm | 1.968" |
| Shank Diameter | 40.0 mm | 1.575" |
| Max Drilling Depth | 200.0 mm | 7.874" |
Recommended Cutting Parameters
Optimize your CNC lathe and milling machine performance:
- Cutting Speed (Vc): 100 - 150 m/min (Material dependent).
- Feed Rate (f): 0.08 - 0.15 mm/rev.
- Coolant Strategy: High-pressure internal coolant is mandatory for 50mm diameters to flush large chips efficiently and prevent tool wear.
Premium Material & Chip Flute Geometry
This WC08 insert holder is manufactured from high-grade alloy steel with specialized heat treatment for anti-vibration performance. The spiral flute geometry is wide-designed for "forced" chip evacuation. This prevents chip-packing—the primary cause of tool failure in 50mm deep hole drilling. The nickel-plated surface ensures superior corrosion resistance and reduces friction during the machining process.
WC Series U-Drill: Pros & Cons
- Uses WCMX / WCMT inserts with 4 cutting edges (Cost-effective).
- Superior stability when entering uneven or curved workpieces.
- Excellent chip breaking on low-carbon and alloy steels.
- Requires high spindle power and torque for 50mm holes.
- Sensitivity to spindle alignment for deep 4D precision.
Tool Tip: Selecting Drill Depth (2D to 5D)
The L/D ratio is critical for CNC tooling success:
- 2D/3D: Highest rigidity. Best for general shallow holes and high-feed applications.
- 4D (This Model): A balanced universal standard for industrial deep-hole machining.
- 5D: Specialized deep-hole drill bit. Requires extremely high coolant pressure and precise feed control to ensure straightness.
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.