Korloy WCMT050308-C20N PC5335 Heavy-Duty U-Drill Insert for Steel & Stainless (10pcs)
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💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
The Original Korloy WCMT050308-C20N PC5335 (ANSI: WCMT 32.52) is a robust Indexable Drill Insert engineered for Large-Diameter Shallow Hole Machining. Designed for drills typically ranging from D25mm to D33mm, the WCMT 05 offers an increased thickness of 3.18mm to withstand the massive cutting forces generated during large-scale drilling. Featuring the PC5335 PVD Grade and C20N Chipbreaker, this insert ensures stable, high-efficiency production in both carbon steel and challenging stainless steel alloys.
Maximum Rigidity: In large-diameter drilling, vibration and heat are your biggest enemies. The WCMT 05's beefier profile combined with PC5335's heat-resistant PVD coating provides the structural integrity needed to maintain tight hole tolerances in heavy industrial applications.
Technical Specifications (Metric & ANSI):
| ISO Designation | WCMT 050308-C20N |
| ANSI Designation | WCMT 32.52 |
| Thickness (S) | 3.18 mm |
| Corner Radius (r) | 0.8 mm |
| Grade | PC5335 (Industrial Toughness PVD) |
| Application Range | Steel (P), Stainless (M), High-Temp Alloys (S) |
Core Performance Benefits:
- Heavy-Duty Construction: The 3.18mm thickness significantly reduces the risk of insert fracturing under high-load, large-diameter drilling conditions.
- Exceptional Thermal Stability: PC5335 grade is specifically formulated to resist the intense heat generated at the outer edge of large drills, preventing premature edge deformation.
- Superior Chip Breaking: The C20N geometry forces thick, tough chips into a tight "C" shape, ensuring they can be flushed out of deep boreholes without scratching the hole wall.
- High ROI 3-Edge Design: Provides three sharp, reliable cutting edges per insert, offering a highly cost-effective alternative to solid carbide tooling for large holes.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Alloy Steel / Mold Steel | 100 - 190 m/min | 0.08 - 0.18 mm/rev |
| Duplex / 316 Stainless | 80 - 150 m/min | 0.06 - 0.15 mm/rev |
Pro Tip: Dominating Large Diameter Holes
Large U-drills using WCMT 05 inserts require significant spindle torque. Ensure your machine has the HP to maintain constant RPM, especially when the drill breaks through the material.
For WCMT 05, coolant volume is as important as pressure. Large holes create large volumes of chips; you need a massive flow to ensure they are carried out effectively.
Packaging: 10 pieces per box.
WCMT050308-C20N Korloy PC5335 price, WCMT 32.52 ANSI equivalent, indexable inserts for 30mm U-drill, heavy duty stainless steel drilling, Korloy PC5335 for large hole drilling, C20N chip control for big drills
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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.