Sumitomo 5KHY198 Replaceable Drill Tip ACX70 0.7480 in

Product Description

The SUMITOMO 5KHY198 is a replaceable drill tip designed for indexable modular drilling systems in the SMD series. It features a 0.7480-inch (19.00 mm) cutting diameter and is manufactured from solid carbide with a PVD-applied TiAlCr/TiSi dual-layer coating. The ACX70 grade is engineered specifically for steel cutting applications, identified by ISO material code P. A 140-degree included angle and MTL insert geometry work together to promote self-centering and chip evacuation. Coolant-through capability delivers cutting fluid directly to the cutting edge, supporting extended tool life and thermal management at higher feed rates.

This drill tip is intended for use in steel machining environments, including general-purpose and production drilling on CNC machining centers and turning centers equipped with internal coolant delivery. It is suited for applications requiring consistent hole quality and dimensional accuracy in P-category workpiece materials such as carbon steel, alloy steel, and cast steel. The replaceable tip design reduces tooling changeover time and allows the carbide body to be reused across multiple tip replacements.

Key Features

• 0.7480-inch (19.00 mm) cutting diameter for precise bore sizing
• Solid carbide construction in ACX70 grade optimized for steel
• PVD-applied TiAlCr/TiSi coating for wear and heat resistance
• Coolant-through design delivers fluid directly to the cutting zone
• 140-degree included angle with MTL geometry for self-centering entry
• Indexable replaceable tip format compatible with SMD series bodies

Compatibility

Designed for use with SUMITOMO SMD series modular drill bodies that accept MTL-geometry replaceable tips at 19.00 mm diameter. Confirm body bore size and tip-locking interface before ordering.

Installation Notes

Installation is performed by qualified machinists or tooling technicians. Ensure the machine spindle is fully stopped and the tool is secured in a fixture or tool holder before seating the tip. Follow the drill body torque specification provided in the SMD series tool documentation when securing the tip screw. Inspect the seating pocket for chips or debris before each tip change to ensure full contact and proper runout.