Sandvik Coromant 5721201 End Mill Holder CAT50 1 in

Product Description

The SANDVIK COROMANT 5721201 is a CAT50 taper shank end mill holder designed for use in CNC machining centers requiring precision tool clamping with integrated coolant delivery. It accepts a 1-inch bore and features through-coolant capability, supporting both through-spindle and through-bore coolant paths as well as DIN flange configurations. With a nose diameter of 2 inches, a projection of 2.62 inches, and a clamping depth of 2.5 inches, this holder is suited for rigid, repeatable tool setups in production milling applications. It is balanced to 8,000 RPM and holds a TIR of 0.002 inches, making it appropriate for moderate to high-speed finishing and semi-finishing operations.

This end mill holder is used in horizontal and vertical CNC machining centers equipped with CAT50 spindles. It is a common choice in heavy-duty production environments such as aerospace, automotive, and general manufacturing shops running larger-diameter end mills or shell mills that demand stable clamping and consistent coolant delivery to the cutting zone. The 2.62-inch projection provides adequate clearance for most standard tooling setups without excessive overhang. Licensed machinists and tooling technicians typically specify this holder when through-coolant capability and balanced high-speed performance are required in a CAT50 platform.

Key Features

• CAT50 taper shank for direct mounting in CAT50-spindle machining centers
• 1-inch bore diameter with 2.5-inch clamping depth for secure end mill retention
• Through-coolant support via through-spindle, through-bore, and DIN flange paths
• Balanced to 8,000 RPM for stable high-speed milling operations
• TIR of 0.002 inches for consistent tool runout control
• 2-inch nose diameter and 2.62-inch projection for clearance flexibility

Compatibility

Designed as an OEM-style end mill holder for CNC machining centers with a CAT50 taper spindle interface accepting 1-inch shank tooling.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician with the machine powered down and spindle locked. Use a properly rated CAT50 pull stud and torque the retention knob according to the machine tool manufacturer specifications. Inspect the taper shank and spindle bore for chips, burrs, or contamination before seating the holder. Verify coolant line connections and through-spindle pressure settings match the machine and tooling requirements before resuming operation.