Korloy WCMT040208-C20N PC5335 Indexable U-Drill Insert for Steel & Stainless (10pcs)
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The Original Korloy WCMT040208-C20N PC5335 (ANSI: WCMT 2.522) is a rugged Indexable Drill Insert specifically crafted for Medium-Diameter Shallow Hole Machining (U-Drills). Engineered with the PC5335 PVD Grade, this insert is the industry standard for shops requiring a balance of toughness and heat resistance. The C20N Chipbreaker ensures precision chip control, breaking ductile steel and stainless steel chips into small, manageable fragments for efficient evacuation.
Designed for Stability: The WCMT 04 series is built to handle higher feed rates and larger drilling depths. The PC5335 grade features an ultra-fine substrate that absorbs the mechanical shocks of high-speed drilling, making it exceptionally reliable in long-run production cycles.
Technical Specifications (Metric & ANSI):
| ISO Designation | WCMT 040208-C20N |
| ANSI Designation | WCMT 2.522 |
| Thickness (S) | 2.38 mm |
| Corner Radius (r) | 0.8 mm |
| Grade | PC5335 (High-Performance PVD) |
| Target Materials | Steel (P), Stainless Steel (M), Cast Iron (K) |
Core Performance Benefits:
- Dual-Material Specialist: Optimized for both Steel and Stainless Steel, reducing the need for tool changes when switching workpieces.
- Enhanced C20N Geometry: The optimized chip-groove design facilitates rapid chip breaking, significantly reducing the torque required by the spindle.
- Superior PVD Coating Adhesion: The PC5335 grade utilizes advanced coating technology to prevent peeling, even when exposed to high-pressure coolant and varying temperatures.
- Economic 3-Edge Design: Trigon (W-style) geometry provides three precision cutting edges, maximizing cost-effectiveness for shallow hole operations.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Alloy Steel (4140/4340) | 100 - 180 m/min | 0.07 - 0.16 mm/rev |
| Stainless Steel (316L) | 90 - 160 m/min | 0.06 - 0.14 mm/rev |
The Korloy Advantage: Drill Performance
As an outer insert, WCMT 04 must withstand the highest surface speeds. PC5335 is engineered to resist the crater wear that typically limits tool life in these positions.
Ensure the U-drill's chip flutes are clear of obstruction. The C20N breaker works best when combined with high-flow internal lubrication to "propel" chips out of the borehole.
Packaging: 10 pieces per box.
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