Sumitomo U103774 Carbide Replaceable Tip Drill 23.5mm

Product Description

The SUMITOMO U103774 is a carbide replaceable tip drill in the SMD series, designed for high-performance hole-making in steel and cast iron applications. It features a 23.5mm cutting diameter and a 140-degree included point angle, making it suited for fast, accurate drilling with minimal thrust force. The drill body incorporates through-coolant capability, directing cutting fluid directly to the cutting zone to extend tip life and evacuate chips efficiently. The replaceable tip design uses the MTL-C insert geometry coated with a PVD-applied TiAlCr and TiSi multilayer finish in the ACX70 grade, balancing wear resistance and toughness across a range of ferrous workpiece materials.

This drill is intended for use in CNC machining centers and turning centers handling steel and cast iron workpieces, designated by workpiece material codes P and K respectively. The SMD series replaceable tip platform reduces tooling cost by allowing the carbide tip to be swapped without replacing the entire drill body. Typical applications include production drilling in automotive, die and mold, and general metalworking environments where consistent hole quality and extended tool life are required. A licensed machinist or CNC operator handles installation and tip replacement.

Key Features

• 23.5mm cutting diameter with 140-degree point angle for reduced thrust and accurate entry
• ACX70 solid carbide grade with PVD-applied TiAlCr and TiSi coating for wear resistance in steel and cast iron
• MTL-C insert geometry optimized for chip control in ferrous materials
• Through-coolant design channels fluid directly to the cutting edge for thermal management and chip evacuation
• Replaceable tip construction minimizes downtime and reduces cost per hole versus solid drill replacement
• SMD series platform with consistent tip seating geometry for repeatable runout and positioning

Compatibility

Designed for use with compatible SUMITOMO SMD series drill bodies that accept the MTL-C replaceable tip geometry. Primary workpiece material compatibility includes steel (P) and cast iron (K) as specified by the manufacturer.

Installation Notes

Tip replacement and body mounting should be performed by a qualified CNC machinist following the machine tool manufacturer lockout procedure before any tooling change. Verify the tip seating surface and body pocket are free of chips and debris before seating the replaceable tip to ensure proper contact and runout. Confirm through-coolant passages are clear and pressure is set per machine specifications before resuming cutting. Do not exceed the manufacturer-rated feed and speed parameters for the ACX70 grade and workpiece material combination.