Sumitomo U101377 Carbide Replaceable Tip Drill ACX70

Product Description

The SUMITOMO U101377 is a solid carbide replaceable tip drill engineered for precision hole-making in steel workpieces. Part of the SMD series, it features a 140-degree included point angle and a TiAlCr/TiSi PVD coating applied using the MTL insert geometry. The 1-1/64-inch diameter cutting tip is designed for consistent performance at high feed rates. Through-coolant capability channels fluid directly to the cutting edge, reducing heat buildup and extending tool life in demanding production environments. This drill is suited for use by machinists and tool-and-die professionals working in job shops, aerospace, automotive, and general manufacturing applications.

The U101377 is designed for use in steel applications classified under ISO material code P. The SMD series replaceable tip design allows the carbide tip to be swapped out without replacing the full drill body, reducing tooling costs in high-volume drilling operations. It is appropriate for CNC machining centers and drill presses equipped with through-spindle coolant systems. The MTL insert geometry supports stable chip evacuation and reliable hole quality in both through-hole and blind-hole configurations in steel.

Key Features

• ACX70 grade solid carbide tip for high wear resistance in steel cutting
• TiAlCr/TiSi PVD coating applied via MTL geometry for heat and oxidation resistance
• 140-degree point angle optimized for steel penetration and self-centering entry
• Through-coolant design directs fluid to the cutting zone for thermal management
• Replaceable tip construction reduces cost-per-hole compared to solid body drills
• SMD series body compatibility for flexible tooling inventory management

Compatibility

Designed as a replaceable tip for the SUMITOMO SMD series drill body system. Confirm body diameter and tip seat compatibility with SMD series specifications before installation.

Installation Notes

Installation of replaceable carbide drill tips should be performed by a qualified machinist or tooling technician. Ensure the drill body and tip seat are clean and free of chips or debris before seating the tip. Verify that the machine spindle coolant pressure meets the through-coolant requirements of the SMD series before operation. Follow the tool manufacturer torque and seating guidelines provided with the drill body to avoid tip damage or runout.