Kennametal 1749370 CAT40 Straight Shank Adapter

Product Description

The KENNAMETAL 1749370 is a CAT40 taper straight shank with flat adapter designed for CNC machining centers that require secure toolholding with through-coolant capability. The adapter features a 1.25-inch inside hole diameter and a 4.75-inch projection, making it suitable for applications that demand extended reach from the spindle face. The 2.5-inch nose diameter and 5/8-11 inch drawbar thread are standard for CAT40 tooling systems. Through-coolant delivery channels coolant directly to the cutting zone, helping manage heat and chip evacuation during drilling and boring operations. Machinists and tooling setup technicians install this adapter in CNC vertical and horizontal machining centers.

This adapter is used in production and job-shop environments where CAT40-spindle machining centers are standard. It is well suited for drilling, boring, and reaming operations where extended projection is needed to reach deep features or clear workholding fixtures. The through-coolant feature makes it a practical choice for operations involving deep-hole drilling or difficult-to-machine materials where flood coolant alone is insufficient. Setup technicians and CNC machinists handle installation during tooling changes or when configuring new operation setups.

Key Features

• CAT40 taper interface for compatibility with standard CAT40 spindles
• 1.25-inch inside hole diameter accepts common straight-shank tooling
• 4.75-inch projection provides extended reach for deep-feature machining
• Through-coolant capability delivers coolant directly to the cutting edge
• 2.5-inch nose diameter with 5/8-11 inch drawbar thread for secure spindle engagement

Compatibility

Designed as a direct-fit toolholder for CAT40-spindle CNC machining centers. No specific compatible model numbers were provided in the product data.

Installation Notes

Installation is performed by a qualified CNC machinist or tooling technician. Power down and lock out the machining center spindle before installing or removing any toolholder. Verify that the taper and drawbar thread match the machine spindle specification before seating the holder. If through-coolant is used, confirm that the machine coolant system is configured and connected before operation.