Iscar 5567991 Carbide Replaceable Tip Drill 0.657 in Hcp-iq

Product Description

The ISCAR 5567991 is a solid carbide replaceable tip drill designed for high-productivity hole-making in ferrous and hard materials. Built to the HCP-IQ series standard, this insert-style tip mounts via a twist-lock seat into compatible HCP-IQ drill bodies, eliminating full-tool replacement when the cutting edge wears. The tip features a TiAlN PVD coating applied over submicron-grade IC908 carbide, which sustains cutting hardness and heat resistance under aggressive feed rates. The 137-degree included angle is self-centering, reducing the need for a pilot hole in most steel and cast iron applications. Two slow-spiral flutes provide controlled chip evacuation suited to the deep-hole style entry this series supports.

This tip is intended for drilling operations in steel and cast iron as primary workpiece materials, with secondary capability in stainless steel, superalloys, titanium, and hard materials. The self-centering point geometry makes it well-suited to CNC machining centers and drilling cells where setup time and runout control matter. It is sized for insert seat size 16 within the HCP-IQ body system and conforms to ISO 13399 tooling data standards, supporting CAM and tool-management software integration. Machinists and toolroom professionals working in job shops, aerospace subcontracting, and general metalworking will find this tip appropriate for through-hole and blind-hole work in moderate-to-hard workpiece materials.

Key Features

• IC908 submicron carbide grade with TiAlN PVD coating for extended tool life in steel and cast iron
• 137-degree self-centering drill point reduces positioning error without a center-drill operation
• Twist-lock insert holding method enables fast tip changes without removing the drill body from the spindle
• Slow-spiral, web-thinned flute design supports chip flow in deep-hole drilling configurations
• Rated for primary use in ISO P and K materials; secondary use in ISO M, S, and H material groups
• Conforms to ISO 13399 for direct integration with tool-management and CAM systems

Compatibility

Designed as a replaceable tip for HCP-IQ series drill bodies using insert seat size 16. ISO number reference is HCP 167-IQ. Confirm body compatibility by matching the seat size and series designation before ordering.

Installation Notes

Installation is performed by a machinist or toolroom technician. Ensure the drill body shank and insert seat are clean and free of chips or debris before seating the tip. Use the appropriate torque key or installation tool specified for HCP-IQ twist-lock tips; do not use pliers or improvised tools that could damage the seating surfaces. Confirm tip is fully locked and seated before spindle engagement. Coolant-through is not supported on this tip; verify coolant delivery method matches the drill body configuration in use.