Kennametal 1749475 CAT50 Straight Shank Adapter

Product Description

The KENNAMETAL 1749475 is a CAT50 taper straight shank adapter with flat, designed for use in CNC machining centers that require a secure, high-torque tool-holding interface. The adapter features a 1.5-inch inside hole diameter and a 4.5-inch projection, providing the reach needed for deep-pocket or extended-tool applications. Through-coolant capability allows cutting fluid to be delivered directly to the cutting edge, improving chip evacuation and extending tool life in demanding metal-cutting operations. This adapter is installed by machinists and toolroom technicians working with CAT50-spindle machines.

This adapter is suited for use in industrial and production machining environments, including job shops and manufacturing facilities running CAT50-spindle vertical or horizontal machining centers. The straight shank with flat configuration accepts standard end mill holders and similar tooling. The through-coolant design makes it a strong fit for deep-bore drilling, reaming, and milling operations where flood coolant alone is insufficient to clear chips or control heat at the cutting zone.

Key Features

• CAT50 taper interface for positive spindle engagement and repeatable tool positioning
• 1.5-inch inside hole diameter accommodates large-shank tooling
• 4.5-inch projection provides extended reach for deep-pocket machining
• Through-coolant design delivers coolant directly to the cutting edge
• Straight shank with flat design for secure set-screw clamping
• 2.75-inch nose diameter for rigidity and vibration damping at the spindle face

Compatibility

Designed for use with CAT50-spindle machining centers requiring a straight shank with flat tool holder. Drawbar thread size is 1-8 inches for compatibility with standard CAT50 retention knobs.

Installation Notes

Installation and tool changes should be performed by qualified machinists or toolroom personnel with the spindle fully powered down and the machine in a locked-out, tagged-out state per applicable safety procedures. Ensure the taper and spindle bore are clean and free of chips or coolant residue before seating the adapter. Verify the drawbar is properly torqued to spindle manufacturer specifications before resuming operation. Do not exceed the toolholder rated speed or overhang limits specified by the machine builder.