- Function: BT40 Lock Tool Holder for CNC machines securely clamps cutting tools during operation for stable cutting and repeatable results - Integrated design: built-in mechanism allows quick installation and removal of tools, reducing change time and operator effort - Unloading tool holder: simplifies tool changes, improving workflow in ATC setups and manual swaps - BT40 compatibility: standard BT40 interface fits a wide range of CNC machines and spindles - Performance and durability: rigid clamping minimizes runout, improves precision, surface finish, and tool life - Construction: high-strength steel body designed for high torque, long service life, and reliable performance - Size and compatibility: BT40 standard supports common BT40 tool shanks and compatible adapters - Use scenarios: - High-speed milling centers with frequent tool changes - Automated ATC production lines requiring fast, reliable tool swaps - Precision pocketing or contour milling where tool stiffness and accuracy matter