Sumitomo 5KHZ228 Carbide Replaceable Tip Drill 16mm Smd

Product Description

The SUMITOMO 5KHZ228 is a carbide replaceable tip drill in the SMD series, designed for high-performance hole-making in a wide range of workpiece materials. Built around a solid carbide tip with a TiAlCr and TiSi PVD coating applied via a PVD process, this drill delivers wear resistance and thermal stability under demanding cutting conditions. The MEL insert geometry and 140-degree included point angle support clean entry and efficient chip evacuation. Integrated through-coolant capability keeps the cutting zone cooled and helps clear chips in deep-hole applications. It is installed and used by machinists and toolroom professionals in production and job-shop environments.

The 5KHZ228 is rated for universal primary workpiece material compatibility, covering ISO material groups K (cast iron), M (stainless steel), P (steel), and S (superalloys and titanium). The replaceable tip design allows tip indexing without removing the drill body from the spindle, reducing changeover time and extending holder life. It is suited for CNC machining centers running through-coolant programs in both horizontal and vertical configurations.

Key Features

• Solid carbide ACX80 grade tip for extended tool life in multi-material applications
• TiAlCr and TiSi PVD coating for high-temperature wear resistance
• 140-degree included point angle with MEL geometry for accurate entry and chip control
• Through-coolant design for effective heat management and chip evacuation in deep holes
• Replaceable tip configuration minimizes downtime and reduces per-hole tooling cost
• Compatible with ISO material groups K, M, P, and S for broad application coverage

Compatibility

Designed for use with SMD series drill bodies accepting the MEL replaceable tip format. Compatible with ISO workpiece material groups K (cast iron), M (stainless steel), P (steel), and S (superalloys and titanium).

Installation Notes

Installation is performed by qualified machinists or toolroom technicians on CNC machining centers equipped with through-spindle coolant systems. Ensure the drill body bore and tip seating surfaces are clean and free of chips before seating the replaceable tip. Confirm coolant pressure and flow rate meet the machine and toolholder specifications before beginning the cut. Follow the tool manufacturer torque guidelines for tip retention screws when specified by the toolholder documentation.