Tecnara 140-303-4 Cat40 End Mill Tool Holder 3/8 Diameter 4 Inch Projection

Description:

The Tecnara 140-303-4 CAT40 End Mill Tool Holder is used in CNC machining centers to securely hold 3/8-inch shank end mills for precision milling, drilling, slotting, and contouring operations. Commonly installed on vertical machining centers, horizontal machining centers, CNC milling machines, and metalworking equipment utilizing CAT40 spindle interfaces. CNC machinists, maintenance technicians, and OEM machine builders use this tool holder for production machining, tool changes, equipment maintenance, and replacement of worn or damaged end mill holders.

Applications:

The Tecnara 140-303-4 CAT40 End Mill Tool Holder is designed to provide rigid, accurate clamping of end mills for high-speed and precision machining applications. It is widely used in aerospace, automotive, general manufacturing, mold and die production, and precision machining environments where secure tool retention, reduced runout, and consistent cutting performance are essential.

Technical Specifications:

• Brand: Tecnara
• Part Number: 140-303-4
• Product Type: CAT40 End Mill Tool Holder
• Function: Holds and secures end mills for CNC milling operations
• Taper Size: CAT40
• Tool Shank Capacity: 3/8 in. (9.53 mm)
• Projection Length: 4 in. (101.6 mm)
• Holder Type: End Mill Holder
• Clamping Method: Set Screw Side Lock
• Application: CNC Milling and Machining Centers
• Compatible Equipment: Vertical Machining Centers, Horizontal Machining Centers, CNC Milling Machines
• Installation: OEM Replacement Component
• Service Use: Production Machining, Tooling Replacement, and Preventive Maintenance

Common Replacements:

• Techniks 22916-4
• GS Tooling 522034
• Accupro 772034