BT (Big Taper) tool holders, including BT 50 and BT 40, are widely used in CNC machining centers for holding cutting tools securely. These collets are designed to provide high precision, rigidity, and stability during high-speed machining operations. The number in BT 50 and BT 40 refers to the taper size, with BT 50 being larger and heavier than BT 40, making it suitable for heavy-duty applications.

Key Features:

• Taper Size: BT 50 (50mm) for heavy-duty, BT 40 (40mm) for high-speed precision.

• Double Contact: Enhanced rigidity, reduced vibration.

• High-Speed Balanced: Smooth operation, less tool wear.

• Symmetrical Design: Even weight distribution, longer spindle life.

• Application: BT 50 for heavy machining, BT 40 for precision work.