Industrial 40-1 1/4 Tool Holder

The CAT40 40-1 1/4" Tool Holder uses a CAT40 taper and a 1-1/4" bore to securely retain and precisely position cutting tools in CNC milling, drilling, and boring operations. This hardened alloy steel tool holder is balanced for high-speed machining and mounts to CAT40 spindle interfaces on CNC machining centers and milling machines, supporting accurate spindle-to-tool alignment for repeatable performance. In industrial settings such as automotive and aerospace component production and metal fabrication, it serves tooling replacement, production setup, and tooling system upgrades to improve part quality and cycle efficiency. Common replacements include BT40 1-1/4" Tool Holder, CAT40 End Mill Holder 1-1/4", and CAT50 1-1/4" Tool Holder (machine compatibility required).