findmall CAT40 3/4" x 4" Shell Face Mill Tool Holder, Pilot TIR 0.0002", 54-60 HRC Alloy Steel, Shell Mill Arbor Balanced to G6.3 15,000 RPM for CNC Milling Machines

CAT40 3/4" x 4" Shell Face Mill Tool Holder, Pilot TIR 0.0002", 54-60 HRC Alloy Steel, Shell Mill Arbor Balanced to G6.3 15,000 RPM for CNC Milling MachinesSpecification: Model: CAT40Gage Length: 4" Max RPM Balanced to: G6.3 15000TIR: 0.0002"Arbor Diamater: 3/4" Features:1. This CAT40 3/4" x 4" shell face mill holder is engineered for high-accuracy CNC machining. 2. It features a pilot TIR <0.0002" and taper-to-face TIR 0.0002", with tapers accuracy ground to AT3 or better. 3. Constructed from high-grade alloy steel hardened to 54-60 HRC, all critical surfaces are accuracy ground post-heat treatment to avoid deformation. 4. Dynamically balanced to G6.3 at 15,000 RPM using equipment, it delivers consistent balance across all locations. 5. The unique flange design with a built-in wall around the spherical hole achieves 50-50 weight distribution, reducing centrifugal force and improving concentricity.Package Includes:1 Pack cat40 3/4" x 4" shell mill arbor

• Accuracy Performance: Shell mill pilot TIR <0.0002", taper-to-face TIR 0.0002", ground to maximum spindle contact and concentricity.
• Dynamic Balancing: Dynamically balanced to G6.3 at 15,000 RPM balancing machine for consistent high-speed stability.
• Excellent Alloy Steel: Hardened to 54-60 HRC for good rigidity, wear resilience, and extended tool life in heavy machining.
• Unique Flange Balance Design: Patented wall structure around spherical hole ensures 50-50 weight symmetry, minimizing centrifugal force at high RPM.
• Non-Chatter Arbor: Improves cutting stability, reduces chatter, and extends overall tool life.