WIDIA™ Top Cut 4™ (TC4) portfolio is a broad offering for customers looking for a versatile indexable drilling platform.
- Insert Positioning — Optimized insert positioning to achieve the maximum drill stability, hole tolerance, and surface quality, above all in deep-drilling applications.
- Coolant Channels — Enhanced coolant holes to get more lubrication at the cutting edge.
- Chip Flute Exit — Steeper chip flute exit to reduce the overall length and increase rigidity.
- SL Shank Style — Metric portfolio: shank sizes are .75, 1, and 1.5" (20mm, 25mm, 32mm, and 40mm) based on the cutting diameter for all the L/D ratios.
- Gash — Improved gash design on both insert pocket seats for a better chip evacuation.