Kennametal 5397516 Ksem Plus Pilot Drill Head FDS71

Product Description

The KENNAMETAL 5397516 is an interchangeable pilot drill head in the KSEM Plus series, designed for large-diameter holemaking in metalworking and machining applications. The head accepts a 31mm pilot drill with style designation KSEMP3100HPGM and accommodates 5 nonpilot inserts secured by clamp and screw holding. Maximum drill diameter reaches 76.2mm (3.0 inches), and the head length measures 47.65mm (1.876 inches). The FDS71 head connection interface ensures rigid, repeatable mounting to compatible KSEM Plus shanks. Internal coolant-through capability helps manage heat and chip evacuation at the cutting zone, which is critical at this diameter range.

This drill head is intended for production and job-shop environments where large-diameter drilling is performed on CNC machining centers and turning centers. The interchangeable pilot design allows the head to be swapped without replacing the full tool assembly, reducing tooling cost per hole. The KSEM Plus platform is suited for steel, cast iron, and other ferrous materials commonly encountered in heavy industrial and component manufacturing operations. Installation and changeover are handled by machinists and CNC tooling specialists.

Key Features

• 76.2mm (3.0 inches) maximum drill diameter for large-bore holemaking
• 31mm interchangeable pilot drill, style KSEMP3100HPGM
• Accepts 5 nonpilot inserts for full-diameter cutting coverage
• Clamp and screw insert holding for secure, repeatable insert seating
• Coolant-through design for thermal management and chip evacuation
• FDS71 head connection for rigid, accurate interface with KSEM Plus shanks

Compatibility

Designed for use with KSEM Plus series drill shanks using the FDS71 head connection interface. Specific shank compatibility should be confirmed against the KENNAMETAL KSEM Plus system configuration for the target bore diameter and machine spindle.

Installation Notes

Installation and tool assembly should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and locked out before mounting or removing the drill head. Verify that the FDS71 interface is clean and free of chips or debris before seating the head. Follow the tool manufacturer torque guidelines for the head connection fastener using the appropriate hex or torx key.