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1. Double helix inner cooling holes.
2. 30% wider and deeper chip space.
3. Hardened to HRC52.
4. High seismic resistance performance.
5. Diameter: 0.93"; Drilling depth: 1.86".
1. Designed with double helix inner cooling holes, coolant come out directy to the cutting area, have a better cooling effect.2. 30% wider and deeper chip space make a smooth chip evacuation. Keeping a good strength and rigidity at the same time.3. Made from super-strength steel hardened to HRC52, better wear-resistance and long service life.4. High seismic resistance performance, which improve the surface finish degree of the workpiece.5. Screw and wrench are included.6. Apply to high precision CNC machining center.
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