Sumitomo U103766 Carbide Replaceable Tip Drill 19mm ACX70

Product Description

The SUMITOMO U103766 is a carbide replaceable tip drill in the SMD series, designed for high-productivity hole-making in ferrous materials. It accepts an SMDT1900MTL-C tip with an ACX70 grade solid carbide insert geometry and a dual PVD coating of TiAlCr and TiSi for extended wear resistance and thermal stability. The 140-degree included point angle suits general-purpose drilling in cast iron and steel. Through-coolant capability delivers cutting fluid directly to the cutting edge, reducing heat buildup and chip evacuation problems in deep-hole applications. Licensed machinists and CNC operators install and use this tool in production machining environments.

This replaceable tip drill is suited for machining cast iron and steel workpieces across both production and job-shop settings. The MTL-C insert geometry is optimized for stable entry and chip control in these materials, making it a practical choice for horizontal machining centers, vertical mills, and CNC turning centers equipped with through-spindle coolant. The 19mm drilling diameter positions it for medium-bore work in structural, automotive, and general industrial applications.

Key Features

• ACX70 grade solid carbide replaceable tip for long tool life in ferrous materials
• Dual PVD coating — TiAlCr and TiSi — for heat and wear resistance
• 140-degree included point angle for stable, general-purpose drilling
• Through-coolant design reduces heat and improves chip evacuation
• MTL-C insert geometry engineered for cast iron and steel chip control
• Replaceable tip design reduces tooling cost versus solid-body drills

Compatibility

Designed for use with SMD series drill bodies accepting the SMDT1900MTL-C replaceable tip. Primary workpiece materials are cast iron (ISO K) and steel (ISO P).

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine in a fully stopped and locked-out state. Ensure the drill body and tip seating surfaces are clean and free of chips before seating the replaceable tip. Through-coolant passages should be verified clear before operation. Follow the machine tool manufacturer and SUMITOMO tooling guidelines for proper clamping torque and runout verification before cutting.