Korloy WCMT050308-C20N PC5335 Heavy-Duty U-Drill Insert for Steel & Stainless (10pcs)
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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