CAT40 Three Quarter Inch Shell Mill Arbor Face Mill Holder 2.5 Inch Length USA Made Built To Last High Precision Runout Under 0.005mm Balanced To 25000 RPM ISO 1940 Carbon Steel

3/4in Shell Mill Arbor, Face Mill Holder, 2.5in Length
✔️ 3/4in CAT40 shell mill arbor, 2.5in long, runout 0.005mm

This precision shell mill holder is built to securely mount shell mills and face mills on CAT40 spindles, typically used in CNC milling and tool room setups.

✅ Runout tolerance: < 0.005 mm (0.0002")
✅ Shank: 3/4 in CAT40
✅ Length: 2.5 in (63.5 mm)
✅ Material: high-grade carbon steel, precision ground
✅ Balanced to 25,000 RPM per ISO 1940

💡 What is a pillow block bearing used for in precision machining?

It holds and aligns rotating shafts to support steady, smooth motion in machinery.

• handy for CNC mills, lathes, and automated lines requiring stable shafts
• helps reduce vibration and wear by keeping shafts true under load
• works with linear guides and supports long, reliable service life